The tongue is a muscular structure located in the oral cavity. It has an anterior oral part and a posterior pharyngeal part separated by a V-shaped sulcus. The superior surface of the oral part contains various papillae (filiform, fungiform, vallate, foliate) involved with taste and texture. Intrinsic muscles alter tongue shape while extrinsic muscles (genioglossus, hyoglossus, styloglossus, palatoglossus) protrude, retract, depress and elevate it. The lingual artery and veins supply blood, and the hypoglossal, lingual, glossopharyngeal and facial nerves provide innervation and sensory function.
1. Deglutition, or swallowing, is the process by which food moves from the mouth to the stomach through coordinated muscular contractions.
2. It involves three stages - oral, pharyngeal, and esophageal. The oral stage is voluntary while the pharyngeal and esophageal stages are involuntary.
3. During the pharyngeal stage, the bolus is pushed from the oropharynx to the hypopharynx through tongue and pharyngeal muscle contractions before entering the esophagus. The esophageal stage then transports the bolus to the stomach through peristaltic waves.
Here are the answers to your questions:
1. C - Fungiform papillae are found right anterior to the sulcus terminalis.
2. C - The palatoglossus muscle is the only muscle of the tongue innervated by the vagus nerve.
3. B - The deep lingual veins drain into the internal jugular vein.
4. B - The chorda tympani is a branch of the facial nerve.
5. A - The chorda tympani provides taste sensation to all papillae except the filiform papillae.
6. A - The filiform papillae are the most numerous of all the papillae types
Facial bones anatomy, Anatomic position of fascial bone, axial skeleton, arti...Dr Shahid Alam
Facial bones anatomy, Anatomic position of fascial bone, axial skeleton, articulation of fascial bone, maxillary sinuses, paranasal sinuses frontanelles, foramina and fissure of skull from BD chaurasia and Snell's anatomy lecture by dr shahid alam, dr shahid, dr alam, shahid, shahid alam
The maxillary artery arises from the external carotid artery and divides into three parts by the lateral pterygoid muscle. It supplies structures of the face, upper jaw, palate, nasal cavity, paranasal sinuses, and meninges. Its branches include the deep auricular, anterior tympanic, middle meningeal, and inferior alveolar arteries which supply the tissues of the face, ear, dura mater, and mandible.
This document discusses the anatomy and physiology of the tongue. It describes the parts of the tongue including the root, body, and apex. It details the intrinsic and extrinsic muscles that control tongue movement as well as the nerve, blood, and lymphatic supply. The document also examines the structure and location of taste buds within lingual papillae. It explores the neural pathways and perception of different tastes. Finally, it outlines the functions of the tongue in mastication, deglutition, speech, and taste.
The tongue has several parts and functions. It is divided into a root, tip, and body. The root attaches the tongue to bones in the mouth. The tip lies behind the upper teeth. The body has an upper dorsum surface and lower ventral surface. The dorsum has oral and pharyngeal parts divided by the sulcus terminalis. The oral part contains papillae and sits in the mouth floor. The pharyngeal part lacks papillae and forms the mouth's back wall. Muscles like the genioglossus connect the tongue to other structures and allow movement. Arteries supply blood while veins drain it. Nerves provide sensation and control. The tongue develops from arches in the
The palate has two parts: the hard (bony) palate anteriorly and the soft (muscular) palate posteriorly. The hard palate forms the roof of the oral cavity and floor of the nose. It receives blood vessels from the greater palatine artery and nerves from the greater palatine and nasopalatine nerves. The soft palate is a movable muscular fold suspended from the posterior border of the hard palate. It has anterior and posterior surfaces and superior and inferior borders, and hangs the conical uvula from its middle.
The document provides information about the anatomy and structures of the tongue. It begins with an introduction and then discusses the functions, development, external features, muscles, mucous membrane, glands, nerve supply, examination, and diseases of the tongue. The document contains detailed descriptions of the intrinsic and extrinsic tongue muscles, papillae, taste buds, arterial supply, lymphatic and venous drainage, and how to properly examine the tongue.
1. Deglutition, or swallowing, is the process by which food moves from the mouth to the stomach through coordinated muscular contractions.
2. It involves three stages - oral, pharyngeal, and esophageal. The oral stage is voluntary while the pharyngeal and esophageal stages are involuntary.
3. During the pharyngeal stage, the bolus is pushed from the oropharynx to the hypopharynx through tongue and pharyngeal muscle contractions before entering the esophagus. The esophageal stage then transports the bolus to the stomach through peristaltic waves.
Here are the answers to your questions:
1. C - Fungiform papillae are found right anterior to the sulcus terminalis.
2. C - The palatoglossus muscle is the only muscle of the tongue innervated by the vagus nerve.
3. B - The deep lingual veins drain into the internal jugular vein.
4. B - The chorda tympani is a branch of the facial nerve.
5. A - The chorda tympani provides taste sensation to all papillae except the filiform papillae.
6. A - The filiform papillae are the most numerous of all the papillae types
Facial bones anatomy, Anatomic position of fascial bone, axial skeleton, arti...Dr Shahid Alam
Facial bones anatomy, Anatomic position of fascial bone, axial skeleton, articulation of fascial bone, maxillary sinuses, paranasal sinuses frontanelles, foramina and fissure of skull from BD chaurasia and Snell's anatomy lecture by dr shahid alam, dr shahid, dr alam, shahid, shahid alam
The maxillary artery arises from the external carotid artery and divides into three parts by the lateral pterygoid muscle. It supplies structures of the face, upper jaw, palate, nasal cavity, paranasal sinuses, and meninges. Its branches include the deep auricular, anterior tympanic, middle meningeal, and inferior alveolar arteries which supply the tissues of the face, ear, dura mater, and mandible.
This document discusses the anatomy and physiology of the tongue. It describes the parts of the tongue including the root, body, and apex. It details the intrinsic and extrinsic muscles that control tongue movement as well as the nerve, blood, and lymphatic supply. The document also examines the structure and location of taste buds within lingual papillae. It explores the neural pathways and perception of different tastes. Finally, it outlines the functions of the tongue in mastication, deglutition, speech, and taste.
The tongue has several parts and functions. It is divided into a root, tip, and body. The root attaches the tongue to bones in the mouth. The tip lies behind the upper teeth. The body has an upper dorsum surface and lower ventral surface. The dorsum has oral and pharyngeal parts divided by the sulcus terminalis. The oral part contains papillae and sits in the mouth floor. The pharyngeal part lacks papillae and forms the mouth's back wall. Muscles like the genioglossus connect the tongue to other structures and allow movement. Arteries supply blood while veins drain it. Nerves provide sensation and control. The tongue develops from arches in the
The palate has two parts: the hard (bony) palate anteriorly and the soft (muscular) palate posteriorly. The hard palate forms the roof of the oral cavity and floor of the nose. It receives blood vessels from the greater palatine artery and nerves from the greater palatine and nasopalatine nerves. The soft palate is a movable muscular fold suspended from the posterior border of the hard palate. It has anterior and posterior surfaces and superior and inferior borders, and hangs the conical uvula from its middle.
The document provides information about the anatomy and structures of the tongue. It begins with an introduction and then discusses the functions, development, external features, muscles, mucous membrane, glands, nerve supply, examination, and diseases of the tongue. The document contains detailed descriptions of the intrinsic and extrinsic tongue muscles, papillae, taste buds, arterial supply, lymphatic and venous drainage, and how to properly examine the tongue.
The document discusses the anatomy of the palate, including its hard and soft parts. The hard palate forms the roof of the mouth and separates the oral and nasal cavities. It is made of bone covered by mucosa. The soft palate is a movable muscular fold that separates the nasopharynx from the oropharynx. It contains several muscles that allow it to elevate and depress. The palate develops from the fusion of embryonic processes and receives innervation from branches of cranial nerves. Clinical considerations include cleft palate and other congenital anomalies, injuries, lesions, and issues related to dentures.
The document provides an overview of the anatomy of the ear in 3 parts:
1) The external ear including the auricle and external auditory meatus.
2) The middle ear including the tympanic cavity, ossicles, muscles and auditory tube.
3) The internal ear including the bony and membranous labyrinths with detailed descriptions of the vestibule, semicircular canals and cochlea. Diagrams are included to illustrate the various parts.
The document describes the eight intrinsic and extrinsic muscles of the tongue. It provides details on the origin, insertion, artery, nerve, and actions of each muscle. The four intrinsic muscles are the superior longitudinal, inferior longitudinal, transverse, and vertical muscles. The four extrinsic muscles are the genioglossus, styloglossus, palatoglossus, and hyoglossus muscles.
Mastication and deglutition are the mechanical processes of chewing and swallowing food. Mastication involves the teeth and muscles of mastication like the masseter, temporalis, lateral and medial pterygoid muscles. It prepares food for swallowing through a sequence of cycles. Deglutition moves the chewed food from the mouth to the stomach in three stages - oral, pharyngeal and esophageal. Coordination of various structures like the tongue, soft palate and larynx are required. Disorders can occur with weakness or dysfunction of these muscles and structures.
The document provides information on the anatomy and physiology of the larynx. It discusses the larynx's location in the neck, its composition of cartilages, muscles, and ligaments. The key functions of the larynx are identified as protection of the respiratory tract, respiration, phonation (voice production), fixation of the chest, and closure of the glottis. Diagrams are included showing the anterior and posterior views of the larynx cavities and structures.
The document summarizes the anatomy of the face, including:
1. The boundaries and skin of the face, which is very vascular and contains sebaceous glands and sweat glands.
2. The superficial fascia of the face contains the muscles of facial expression and fat.
3. The muscles of facial expression are divided into groups that control the scalp, eyelids, nose, mouth, and neck. These muscles are innervated by the facial nerve.
4. The arteries, veins, lymphatics, and nerves that supply the structures of the face.
The tongue is a muscular organ in the mouth of most vertebrates that manipulates food for mastication and is used in the act of swallowing. It has importance in the digestive system and is the primary organ of taste in the gustatory system.
The document summarizes the key anatomical structures and contents of the temporal and infratemporal regions. The temporal fossa is bounded by bones and contains the temporalis muscle and arteries. The infratemporal fossa below contains muscles like the lateral and medial pterygoids and nerves like the mandibular nerve. The maxillary artery branches throughout these regions, including the pterygopalatine fossa which communicates between structures. The temporalis, masseter, and pterygoid muscles are involved in mastication.
The tongue is a muscular organ located in the oral cavity that aids in chewing, swallowing, and speech. It has intrinsic and extrinsic muscles that allow for movement. The dorsal surface contains papillae that contribute to taste and texture. The lingual artery supplies blood while the hypoglossal, lingual, and glossopharyngeal nerves provide motor and sensory innervation. Lymph drains from the tongue to deep cervical lymph nodes.
The tongue is a muscular organ located in the floor of the mouth. It has several functions including taste, speech, mastication, and deglutition. The tongue has four parts - the root, tip, body, and dorsum. It is made up of intrinsic and extrinsic muscles that allow for movements like protrusion and retraction. The tongue has a blood supply from the lingual artery and nerve supply from the hypoglossal nerve.
This document provides information on salivary glands:
- It defines salivary glands as exocrine glands that secrete saliva into the oral cavity. Major salivary glands include the parotid, submandibular, and sublingual glands. Minor salivary glands are scattered throughout the oral mucosa.
- The structure of salivary glands includes secretory end pieces or acini composed of serous or mucous cells that secrete into a ductal system comprising intercalated, striated, and terminal ducts that drain into the oral cavity. Myoepithelial cells surround the acini and ducts and aid in secretion.
The maxillary artery arises from the external carotid artery and divides into three parts - the mandibular, pterygoid, and pterygopalatine parts. It supplies structures in the face like the maxilla and mandible. The maxillary artery and its branches anastomose with other vessels and are clinically significant for conditions like nosebleeds, epidural hematomas, and complications during procedures like Le Fort I osteotomies when the branches can be injured. Precise surgical techniques are important to avoid damaging branches like the descending palatine artery.
This document provides an overview of the anatomy of the mandible. It discusses the parts and features of the mandible, including the body, ramus, condylar process and coronoid process. It describes the ossification, attachments, blood supply, nerve supply and age-related changes of the mandible. Key points covered include the mandible ossifying from Meckel's cartilage, its attachments to muscles like the masseter and temporalis, the inferior alveolar artery and nerve supplying it, and how its shape changes with age with tooth eruption and absorption.
Salivary glands are compound exocrine glands composed of both secretory and ductal components. There are three major salivary glands - parotid, submandibular, and sublingual glands. Saliva produced contains water, electrolytes, enzymes, mucins and other proteins that serve protective, digestive and antimicrobial functions in the oral cavity. The glands have both serous and mucous acini that secrete into a ductal system ranging from intercalated to striated to excretory ducts. With aging, the glands demonstrate loss of parenchyma and increased fibrous tissue.
Tongue development, applied anatomy and prosthetic implicationsDr. KRITI TREHAN
The document provides information on the anatomy and development of the tongue. It discusses the tongue's embryological development from the pharyngeal arches, anatomy including muscles and vasculature, histology highlighting the different papillae and taste buds, and common clinical issues like infections and developmental disturbances. The tongue has intrinsic and extrinsic muscles that allow for various movements and plays important roles in speech, swallowing, and tasting.
The tongue is supplied by nerves, blood vessels and lymphatics. It has intrinsic and extrinsic muscles that allow for movement and functions like speech, taste and swallowing. The surface of the tongue contains papillae that contribute to its texture and ability to taste. The root attaches to local bones and muscles while the tip is free moving.
This document provides an overview of the anatomy of the oral cavity. It describes the oral vestibule and oral cavity proper, including their boundaries and characteristics. It then discusses the palate, soft palate, tongue and their blood supply, lymphatic drainage, nerve supply and muscles. The palate forms the roof of the oral cavity and consists of the hard and soft palate. The tongue is composed of muscles, glands, tissue and papillae and is involved with tasting, chewing, swallowing and speaking.
The nose has several functions including smelling, breathing, filtering air, and draining secretions. It is made up of an external cartilage portion and internal nasal cavities divided by a nasal septum. The nasal cavities contain turbinate bones that increase their surface area and are lined with mucosa. They open anteriorly through the nostrils and posteriorly into the nasopharynx. The nose receives blood supply from several arteries and drains venous blood. Lymph drains from the nose to cervical lymph nodes. The nose has both general sensory innervation and a specialized olfactory area in the upper nasal cavity.
Mastication or chewing is the first step of digestion where food is crushed and ground by teeth, increasing its surface area for enzyme break down. During chewing, muscles position the food between teeth for grinding. The lateral pterygoid muscle is responsible for opening the mouth during mastication. It has upper and lower heads and relates to surrounding structures like the mandibular nerve, sphenomandibular ligament, and maxillary artery.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
This document provides an overview of the anatomy of the tongue and palate. It begins with the embryological development of the tongue, describing how swellings in the floor of the mouth merge to form the structure. It then details the anatomy of the tongue, including its parts such as the apex, body and root. It discusses the musculature of the tongue including both extrinsic and intrinsic muscles. It also describes the arterial blood supply from the lingual artery and venous drainage of the tongue. In summary, the document is a comprehensive review of the development, structures, muscles, vasculature and innervation of the tongue and palate.
The document discusses the anatomy of the palate, including its hard and soft parts. The hard palate forms the roof of the mouth and separates the oral and nasal cavities. It is made of bone covered by mucosa. The soft palate is a movable muscular fold that separates the nasopharynx from the oropharynx. It contains several muscles that allow it to elevate and depress. The palate develops from the fusion of embryonic processes and receives innervation from branches of cranial nerves. Clinical considerations include cleft palate and other congenital anomalies, injuries, lesions, and issues related to dentures.
The document provides an overview of the anatomy of the ear in 3 parts:
1) The external ear including the auricle and external auditory meatus.
2) The middle ear including the tympanic cavity, ossicles, muscles and auditory tube.
3) The internal ear including the bony and membranous labyrinths with detailed descriptions of the vestibule, semicircular canals and cochlea. Diagrams are included to illustrate the various parts.
The document describes the eight intrinsic and extrinsic muscles of the tongue. It provides details on the origin, insertion, artery, nerve, and actions of each muscle. The four intrinsic muscles are the superior longitudinal, inferior longitudinal, transverse, and vertical muscles. The four extrinsic muscles are the genioglossus, styloglossus, palatoglossus, and hyoglossus muscles.
Mastication and deglutition are the mechanical processes of chewing and swallowing food. Mastication involves the teeth and muscles of mastication like the masseter, temporalis, lateral and medial pterygoid muscles. It prepares food for swallowing through a sequence of cycles. Deglutition moves the chewed food from the mouth to the stomach in three stages - oral, pharyngeal and esophageal. Coordination of various structures like the tongue, soft palate and larynx are required. Disorders can occur with weakness or dysfunction of these muscles and structures.
The document provides information on the anatomy and physiology of the larynx. It discusses the larynx's location in the neck, its composition of cartilages, muscles, and ligaments. The key functions of the larynx are identified as protection of the respiratory tract, respiration, phonation (voice production), fixation of the chest, and closure of the glottis. Diagrams are included showing the anterior and posterior views of the larynx cavities and structures.
The document summarizes the anatomy of the face, including:
1. The boundaries and skin of the face, which is very vascular and contains sebaceous glands and sweat glands.
2. The superficial fascia of the face contains the muscles of facial expression and fat.
3. The muscles of facial expression are divided into groups that control the scalp, eyelids, nose, mouth, and neck. These muscles are innervated by the facial nerve.
4. The arteries, veins, lymphatics, and nerves that supply the structures of the face.
The tongue is a muscular organ in the mouth of most vertebrates that manipulates food for mastication and is used in the act of swallowing. It has importance in the digestive system and is the primary organ of taste in the gustatory system.
The document summarizes the key anatomical structures and contents of the temporal and infratemporal regions. The temporal fossa is bounded by bones and contains the temporalis muscle and arteries. The infratemporal fossa below contains muscles like the lateral and medial pterygoids and nerves like the mandibular nerve. The maxillary artery branches throughout these regions, including the pterygopalatine fossa which communicates between structures. The temporalis, masseter, and pterygoid muscles are involved in mastication.
The tongue is a muscular organ located in the oral cavity that aids in chewing, swallowing, and speech. It has intrinsic and extrinsic muscles that allow for movement. The dorsal surface contains papillae that contribute to taste and texture. The lingual artery supplies blood while the hypoglossal, lingual, and glossopharyngeal nerves provide motor and sensory innervation. Lymph drains from the tongue to deep cervical lymph nodes.
The tongue is a muscular organ located in the floor of the mouth. It has several functions including taste, speech, mastication, and deglutition. The tongue has four parts - the root, tip, body, and dorsum. It is made up of intrinsic and extrinsic muscles that allow for movements like protrusion and retraction. The tongue has a blood supply from the lingual artery and nerve supply from the hypoglossal nerve.
This document provides information on salivary glands:
- It defines salivary glands as exocrine glands that secrete saliva into the oral cavity. Major salivary glands include the parotid, submandibular, and sublingual glands. Minor salivary glands are scattered throughout the oral mucosa.
- The structure of salivary glands includes secretory end pieces or acini composed of serous or mucous cells that secrete into a ductal system comprising intercalated, striated, and terminal ducts that drain into the oral cavity. Myoepithelial cells surround the acini and ducts and aid in secretion.
The maxillary artery arises from the external carotid artery and divides into three parts - the mandibular, pterygoid, and pterygopalatine parts. It supplies structures in the face like the maxilla and mandible. The maxillary artery and its branches anastomose with other vessels and are clinically significant for conditions like nosebleeds, epidural hematomas, and complications during procedures like Le Fort I osteotomies when the branches can be injured. Precise surgical techniques are important to avoid damaging branches like the descending palatine artery.
This document provides an overview of the anatomy of the mandible. It discusses the parts and features of the mandible, including the body, ramus, condylar process and coronoid process. It describes the ossification, attachments, blood supply, nerve supply and age-related changes of the mandible. Key points covered include the mandible ossifying from Meckel's cartilage, its attachments to muscles like the masseter and temporalis, the inferior alveolar artery and nerve supplying it, and how its shape changes with age with tooth eruption and absorption.
Salivary glands are compound exocrine glands composed of both secretory and ductal components. There are three major salivary glands - parotid, submandibular, and sublingual glands. Saliva produced contains water, electrolytes, enzymes, mucins and other proteins that serve protective, digestive and antimicrobial functions in the oral cavity. The glands have both serous and mucous acini that secrete into a ductal system ranging from intercalated to striated to excretory ducts. With aging, the glands demonstrate loss of parenchyma and increased fibrous tissue.
Tongue development, applied anatomy and prosthetic implicationsDr. KRITI TREHAN
The document provides information on the anatomy and development of the tongue. It discusses the tongue's embryological development from the pharyngeal arches, anatomy including muscles and vasculature, histology highlighting the different papillae and taste buds, and common clinical issues like infections and developmental disturbances. The tongue has intrinsic and extrinsic muscles that allow for various movements and plays important roles in speech, swallowing, and tasting.
The tongue is supplied by nerves, blood vessels and lymphatics. It has intrinsic and extrinsic muscles that allow for movement and functions like speech, taste and swallowing. The surface of the tongue contains papillae that contribute to its texture and ability to taste. The root attaches to local bones and muscles while the tip is free moving.
This document provides an overview of the anatomy of the oral cavity. It describes the oral vestibule and oral cavity proper, including their boundaries and characteristics. It then discusses the palate, soft palate, tongue and their blood supply, lymphatic drainage, nerve supply and muscles. The palate forms the roof of the oral cavity and consists of the hard and soft palate. The tongue is composed of muscles, glands, tissue and papillae and is involved with tasting, chewing, swallowing and speaking.
The nose has several functions including smelling, breathing, filtering air, and draining secretions. It is made up of an external cartilage portion and internal nasal cavities divided by a nasal septum. The nasal cavities contain turbinate bones that increase their surface area and are lined with mucosa. They open anteriorly through the nostrils and posteriorly into the nasopharynx. The nose receives blood supply from several arteries and drains venous blood. Lymph drains from the nose to cervical lymph nodes. The nose has both general sensory innervation and a specialized olfactory area in the upper nasal cavity.
Mastication or chewing is the first step of digestion where food is crushed and ground by teeth, increasing its surface area for enzyme break down. During chewing, muscles position the food between teeth for grinding. The lateral pterygoid muscle is responsible for opening the mouth during mastication. It has upper and lower heads and relates to surrounding structures like the mandibular nerve, sphenomandibular ligament, and maxillary artery.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
This document provides an overview of the anatomy of the tongue and palate. It begins with the embryological development of the tongue, describing how swellings in the floor of the mouth merge to form the structure. It then details the anatomy of the tongue, including its parts such as the apex, body and root. It discusses the musculature of the tongue including both extrinsic and intrinsic muscles. It also describes the arterial blood supply from the lingual artery and venous drainage of the tongue. In summary, the document is a comprehensive review of the development, structures, muscles, vasculature and innervation of the tongue and palate.
The document provides an overview of the anatomy and development of the tongue. It discusses the following key points in 3 sentences:
The tongue develops from the first, second and third pharyngeal arches by the 4th week of development. It has intrinsic and extrinsic muscles that allow it to carry out functions like speech, taste, swallowing and digestion. The tongue has various papillae that contain taste buds and is supplied by nerves, blood vessels and lymphatics which facilitate its many roles in the oral cavity.
1) The tongue is a muscular organ located in the oral cavity that has roles in taste, speech, chewing, swallowing, and mouth cleansing. It contains both intrinsic and extrinsic muscles.
2) The tongue has several parts including the root, tip, body, and dorsum. The dorsum has oral and pharyngeal parts that differ in structure and function. It is covered in papillae that give it a rough texture and aid in taste.
3) The tongue receives its motor innervation mainly from the hypoglossal nerve and sensory innervation from the lingual, chorda tympani, and glossopharyngeal nerves. Its blood supply is from the lingual artery and it
Anatomy of the gastrointestinal system by Dawood AlatefiDawood Alatefi
The document provides an anatomy summary of the gastrointestinal system in the head and neck region. It describes the structures and functions of the mouth including the lips, vestibule, hard and soft palates, tongue, and salivary glands. It discusses the deciduous and permanent teeth and muscles, innervation, and movements of the tongue. The summary also covers the nerves, blood supply and lymph drainage of structures in the head and neck GI region.
The tongue is a muscular organ in the mouth that aids in tasting, speaking, chewing, and swallowing. It has intrinsic and extrinsic muscles that allow it to move and change shape. The tongue's surface contains papillae that give it a rough texture and help with taste. The root of the tongue attaches to bones in the mouth, while the tip is free. Sensory nerves allow the tongue to detect different tastes across its surface.
The document provides an overview of the anatomy of the oral cavity and nasal cavity. It describes the structures and functions of the oral cavity, including the oral vestibule, oral cavity proper, walls, floor, tongue, lips, salivary glands, blood supply, innervation, and muscles. The oral cavity has roles in ingestion, speech, and breathing. It is bounded by the hard and soft palates above, the tongue below, and the cheeks and teeth laterally. The document also briefly discusses the submandibular gland.
The oral cavity has walls, a roof, and floor that form its boundaries. It has two openings - the oral fissure anteriorly and the oropharyngeal isthmus posteriorly. The oral cavity is separated into the oral vestibule and oral cavity proper by the upper and lower dental arches. The walls include the cheeks, which are made of skin, muscle and oral mucosa. The floor is formed by the mylohyoid and geniohyoid muscles and the tongue. The tongue has various papillae and is composed of intrinsic and extrinsic muscles that aid in movement and functions like speech and swallowing. Blood vessels like the lingual artery supply the tongue.
The tongue is a muscular organ in the mouth involved in tasting, speaking, chewing, and swallowing. It has a root that attaches to bones below, a tip, and a body with an upper and lower surface. The upper surface contains papillae that give it a bumpy texture and are associated with different tastes. The tongue contains intrinsic muscles that alter its shape and extrinsic muscles that connect it to other structures. It is supplied by nerves and blood vessels. Abnormalities can involve its size, attachments, or surface features and affect functions like speech.
The document provides an overview of the anatomy and development of the tongue. It discusses the tongue's external features, papillae, muscles, blood supply, lymphatic and nerve pathways. Key points include that the tongue has intrinsic and extrinsic muscles that alter its shape and position. It develops from the first pharyngeal arch and surrounding mesenchyme. The anterior two-thirds receive sensory innervation from the lingual nerve and chorda tympani, while the posterior third receives it from the glossopharyngeal nerve. Clinical applications involving tongue inspection, cancer, and various developmental disturbances are also summarized.
Brief Details of Tongues functions and nerve supplyDrSumanB
This document discusses the anatomy and physiology of the human tongue. It describes the tongue's structure, functions in taste, speech and food manipulation. It discusses the tongue's embryological development, blood supply, lymphatic drainage, nerve supply and musculature. It also covers physiological variants like ankyloglossia and fissured tongue, as well as surgical considerations involving thyroglossal duct cysts.
The oral cavity and oropharynx are described in detail. The oral cavity extends from the lips to the oropharyngeal isthmus and includes structures like the cheeks, gums, hard palate, oral tongue, and floor of mouth. The oropharynx is behind the soft palate and serves as a passageway for food and air. It includes the base of tongue, palatine tonsils, soft palate, and pharyngeal wall. Both areas have detailed descriptions of anatomy, blood supply, nerve supply, lymphatic drainage and functions.
The document discusses the anatomy and histology of the tongue. It begins by defining the tongue as a muscular organ involved in tasting, swallowing, and speech. It then describes the external features, divisions, muscles, blood supply, innervation, and histology of the tongue. The major papilla types are also outlined, including their locations and functions. In summary, the document provides a comprehensive overview of the gross and microscopic anatomy of the human tongue.
This document provides an overview of the anatomy and histology of the tongue. It discusses the parts and surfaces of the tongue, the intrinsic and extrinsic muscles, vascular supply, innervation, and histology. It also covers clinical considerations such as injuries, diseases, and malignant tumors that can affect the tongue.
Anatomy of oral cavity, pharynx& larynx-Dr Rajesh KumarRajesh Sinwer
The document describes the anatomy of the oral cavity, pharynx, and larynx. It discusses the structures and tissues within these areas such as the tongue, palate, tonsils, teeth, and laryngeal cartilages. It also describes the blood supply, nerve innervation, and functions of the muscles within the oral cavity, pharynx and larynx.
The oral cavity extends from the lips to the palatoglossal arches. It is lined with mucous membrane and consists of the vestibule and oral cavity proper. Bones like the maxillae and mandible form part of its skeletal framework. Structures in the oral cavity include the lips, gingivae, teeth, palate, floor of the mouth, tongue, and cheeks. The oral cavity drains to lymph nodes like the submental, submandibular, and jugulodiagastric nodes. The oral mucosa lines the mouth and is continuous with the skin and pharyngeal mucosa.
The tongue develops from the pharyngeal arches in the fourth week of gestation. The anterior two-thirds is derived from the mandibular arch while the posterior one-third develops from the third arch. It has intrinsic and extrinsic muscles that aid in functions like speech, swallowing, and taste sensation. Taste buds are located on papillae and perceive the primary tastes of sweet, salty, bitter and sour. The tongue has sensory innervation from cranial nerves and blood supply from the lingual artery.
Oral Cavity - The divisions and BoundariesOHupdates
1. The document discusses the anatomy of the oral cavity, including its divisions, boundaries, roof, floor, and lateral walls.
2. It describes the various regions of the oral cavity, including the oral vestibule and oral cavity proper, as well as the major anatomical features of the tongue and palate.
3. The document outlines the muscles, vasculature, innervation, and papillae of the tongue, as well as the muscles of the soft palate and floor of the oral cavity.
Main Java[All of the Base Concepts}.docxadhitya5119
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...PECB
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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The simplified electron and muon model, Oscillating Spacetime: The Foundation...RitikBhardwaj56
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it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
Walmart Business+ and Spark Good for Nonprofits.pdfTechSoup
"Learn about all the ways Walmart supports nonprofit organizations.
You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
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Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
How to Make a Field Mandatory in Odoo 17Celine George
In Odoo, making a field required can be done through both Python code and XML views. When you set the required attribute to True in Python code, it makes the field required across all views where it's used. Conversely, when you set the required attribute in XML views, it makes the field required only in the context of that particular view.
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1. TONGUE
The tongue is a muscular structure that forms part of the floor
of the oral cavity and part of the anterior wall of the
oropharynx. Its anterior part is in the oral cavity and is
somewhat triangular in shape with a blunt apex of tongue.
The apex is directed anteriorly and sits immediately behind
the incisor teeth. The root of tongue is attached to the
mandible and the hyoid bone.
2.
The superior surface of the oral or anterior two-thirds of
the tongue is oriented in the horizontal plane.
The pharyngeal surface or posterior one-third of the
tongue curves inferiorly and becomes oriented more in
the vertical plane. The oral and pharyngeal surfaces are
separated by a V-shaped terminal sulcus of tongue. This
terminal sulcus forms the inferior margin of the
oropharyngeal isthmus between the oral and pharyngeal
cavities. At the apex of the V-shaped sulcus is a small
depression (the foramen cecum of tongue), which marks
the site in the embryo where the epithelium invaginated to
form the thyroid gland. In some people a thyroglossal
duct persists and connects the foramen cecum on the
tongue with the thyroid gland in the neck.
3.
4. PAPILLAE
Papillae
The superior surface of the oral part of the tongue is covered by
hundreds of papillae:
filiform papillae are small cone-shaped projections of the mucosa that
end in one or more points;
fungiform papillae are rounder in shape and larger than the filiform
papillae, and tend to be concentrated along the margins of the tongue;
the largest of the papillae are the vallate papillae, which are blunt-ended
cylindrical papillae invaginations in the tongue's surface-there are only
about 8 to 12 vallate papillae in a single V-shaped line immediately
anterior to the terminal sulcus of tongue;
foliate papillae are linear folds of mucosa on the sides of the tongue
near the terminal sulcus of tongue.
The papillae in general increase the area of contact between the
surface of the tongue and the contents of the oral cavity. All except
the filiform papillae have taste buds on their surfaces.
5.
Inferior surface of tongue
The undersurface of the oral part of the tongue lacks papillae, but
does have a number of linear mucosal folds. A single median fold
(the frenulum of tongue) is continuous with the mucosa covering
the floor of the oral cavity, and overlies the lower margin of a
midline sagittal septum, which internally separates the right and
left sides of the tongue.
Pharyngeal surface
The mucosa covering the pharyngeal surface of the tongue is
irregular in contour because of the many small nodules of
lymphoid tissue in the submucosa. These nodules are collectively
the lingual tonsil.
There are no papillae on the pharyngeal surface.
6.
7. MUSCLES OF THE TONGUE
The bulk of the tongue is composed of muscle
The tongue is completely divided into a left and
right half by a median sagittal septum
composed of connective tissue. This means that
all muscles of the tongue are paired. There are
intrinsic and extrinsic lingual muscles.
Except for the palatoglossus, which is
innervated by the vagus nerve [X], all muscles
of the tongue are innervated by the hypoglossal
nerve [XII].
8. INTRINSIC MUSCLES
The intrinsic muscles of the tongue originate
and insert within the substance of the
tongue. They are divided into superior
longitudinal, inferior longitudinal, transverse,
and vertical muscles, and they alter the
shape of the tongue by:
lengthening and shortening it;
curling and uncurling its apex and edges;
and
flattening and rounding its surface.
9. EXTRINSIC MUSCLES
Extrinsic muscles of the tongue originate
from structures outside the tongue and insert
into the tongue. There are four major
extrinsic muscles on each side, the
genioglossus, hyoglossus, styloglossus,
and palatoglossus. These muscles
protrude, retract, depress, and elevate the
tongue.
10. GENIOGLOSSUS
The thick fan-shaped genioglossus muscles make a substantial contribution to
the structure of the tongue. They occur on either side of the midline septum that
separates left and right halves of the tongue.
The genioglossus muscles originate from the superior mental spines on the
posterior surface of the mandibular symphysis. From this small site of origin,
each muscle expands posteriorly and superiorly. The most inferior fibers attach
to the hyoid bone. The remaining fibers spread out superiorly to blend with the
intrinsic muscles along virtually the entire length of the tongue.
The genioglossus muscles:
depress the central part of the tongue; and
protrude the anterior part of the tongue out of the oral fissure (i.e., stick the
tongue out).
Like most muscles of the tongue, the genioglossus muscles are innervated by
the hypoglossal nerves [XII].
Asking a patient to "stick your tongue out" can be used as a test for the
hypoglossal nerves [XII]. If the nerves are functioning normally, the tongue
should protrude evenly in the midline. If the nerve on one side is not fully
functional, the tip of the tongue will point to that side.
12. HYOGLOSSUS
The hyoglossus muscles are thin quadrangular
muscles lateral to the genioglossus muscles.
Each hyoglossus muscle originates from the entire
length of the greater horn and the adjacent part of the
body of the hyoid bone. At its origin from the hyoid
bone, the hyoglossus muscle is lateral to the
attachment of the middle constrictor muscle of the
pharynx. The muscle passes superiorly and anteriorly
through the gap between the superior constrictor,
middle constrictor, and mylohyoid to insert into the
tongue lateral to the genioglossus and medial to the
styloglossus.
13.
The hyoglossus muscle is an important
landmark in the floor of the oral cavity:
the lingual artery from the external carotid artery
in the neck enters the tongue deep to the
hyoglossus, between the hyoglossus and
genioglossus;
the hypoglossal nerve [XII] and lingual nerve
,from the neck and infratemporal fossa of the
head, respectively, enter the tongue on the
external surface of the hyoglossus.
15. STYLOGLOSSUS
The styloglossus muscles originate from the
anterior surface of the styloid processes of the
temporal bones. From here, each muscle
passes inferiorly and medially through the gap
between the middle constrictor, superior
constrictor, and mylohyoid muscles to enter the
lateral surface of the tongue .
The styloglossus muscles retract the tongue
and pull the back of the tongue superiorly
17. PALATOGLOSSUS
The palatoglossus muscles are muscles of the soft
palate and the tongue. Each originates from the
undersurface of the palatine aponeurosis and passes
anteroinferiorly to the lateral side of the tongue.
The palatoglossus muscles:
elevate the back of the tongue;
depress the soft palate.
Unlike other muscles of the tongue, but similar to
most other muscles of the soft palate, the
palatoglossus muscles are innervated by the vagus
nerves [X].
19. VESSELSARTERIES
The major artery of the tongue is the lingual artery
On each side, the lingual artery originates from the
external carotid artery in the neck. It forms an upward
bend and then loops downward and forward to pass deep
to the hyoglossus muscle, and accompanies the muscle
through the aperture formed by the margins of the
mylohyoid, superior constrictor, and middle constrictor
muscles, and enters the floor of the oral cavity.
In addition to the tongue, the lingual artery supplies the
sublingual gland, gingiva, and oral mucosa in the floor of
the oral cavity.
20. VESSELSVEINS
The tongue is drained by dorsal lingual and deep lingual
veins
The deep lingual veins are visible through the mucosa on
the undersurface of the tongue. Although they accompany
the lingual arteries in anterior parts of the tongue, they
become separated from the arteries posteriorly by the
hyoglossus muscles. On each side, the deep lingual vein
travels with the hypoglossal nerve [XII] on the external
surface of the hyoglossus muscle and passes out of the
floor of the oral cavity through the aperture formed by the
margins of the mylohyoid, superior constrictor, and middle
constrictor muscles. It joins the internal jugular vein in the
neck.
21. VESSELSVEINS
The dorsal lingual vein follows the lingual
artery between the hyoglossus and
genioglossus muscles and, like the deep
lingual vein, drains into the internal jugular
vein in the neck.
23. INNERVATION
Innervation of the tongue is complex and involves a number of nerves
Glossopharyngeal nerve [IX]
Taste (SA) and general sensation from the pharyngeal part of the tongue are
carried by the glossopharyngeal nerve [IX].
Lingual nerve
General sensory innervation from the anterior two-thirds or oral part of the
tongue is carried by the lingual nerve.
In addition to general sensation from the oral part of the tongue. The lingual
nerve also carries parasympathetic and taste fibers from the oral part of the
tongue that are part of the facial nerve [VII].
Facial nerve [VII]
Taste (SA) from the oral part of the tongue is carried into the central nervous
system by the facial nerve [VII]. Special sensory (SA) fibers of the facial nerve
[VII] leave the tongue and oral cavity as part of the lingual nerve. The fibers then
enter the chorda tympani nerve, which is a branch of the facial nerve [VII] that
joins the lingual nerve in the infratemporal fossa
Hypoglossal nerve [XII]
All muscles of the tongue are innervated by the hypoglossal nerve [XII] except
for the palatoglossus muscle, which is innervated by the vagus nerve [X].