Temporal and infratemporal region part 2
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The mandibular nerve originates as a branch of the trigeminal nerve. It exits the skull through the foramen ovale and divides into anterior and posterior divisions in the infratemporal fossa. The anterior and posterior divisions each give off branches that include the auriculotemporal nerve, inferior alveolar nerve, and lingual nerve. The inferior alveolar nerve travels through the mandibular canal to innervate teeth and chin. The lingual nerve joins with the chorda tympani and supplies sensation to the tongue. The otic ganglion receives parasympathetic input that helps regulate salivation.
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The infratemporal fossa is located below the temporal fossa. It is bounded by the ramus of the mandible laterally, the maxilla anteriorly, and the lateral pterygoid plate medially. The infratemporal fossa contains the mandibular nerve, maxillary artery, pterygoid venous plexus, and the medial and lateral pterygoid muscles. The maxillary artery passes through the infratemporal fossa and gives off several branches including the middle meningeal artery, accessory meningeal artery, inferior alveolar artery, and infraorbital artery. It communicates with surrounding areas through gaps in bones and openings in the skull.
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Temporal and infratemporal region part 1
1) The temporalis muscle originates from the temporal fossa and temporal fascia and inserts on the coronoid process and mandible. It elevates and retracts the mandible.
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The document discusses the anatomy and embryology of the facial nerve. It begins with an introduction stating that the facial nerve is the seventh cranial nerve and is mixed with both motor and sensory components. It then covers the embryological development of the facial nerve from the second branchial arch. The document outlines the course of the facial nerve from its nuclei of origin in the brainstem through its intracranial, intratemporal, and extracranial segments. It details the branches and functional components of the facial nerve as well as associated ganglia. Variations and blood supply of the facial nerve are also mentioned.
Local Anesthesia in Dentistry
The document provides information on local anesthesia, including:
1) It discusses the historical background of local anesthesia, from the isolation of cocaine in 1860 to the development of procaine and lidocaine.
2) It defines local anesthesia as the loss of sensation in a specific body area caused by inhibiting nerve conduction without loss of consciousness.
3) It describes the mechanisms of action of local anesthetics, including that they work by binding to specific receptor sites on sodium channels in nerves to inhibit sodium conduction and excitation.
4) It provides classifications of local anesthetics according to their biological site and mode of action, including examples like lidocaine that work through both receptor-dependent and independent mechanisms.
Techniques of Local Anesthesia
This document provides information on various techniques of local anesthesia. It begins by classifying local anesthesia techniques into topical, infiltration, and nerve block. For infiltration anesthesia, it describes soft tissue and intra-bony infiltration techniques for the maxilla and mandible. For nerve block anesthesia, it details techniques for blocking specific nerves of the maxilla like the posterior superior alveolar nerve and mandible like the inferior alveolar nerve. Factors influencing choice of technique and contraindications are also summarized. The document provides in-depth descriptions of performing local anesthesia techniques for the maxilla and mandible.
Mandibular anesthetic techniques
The document discusses various mandibular anesthetic techniques including infiltration anesthesia of the anterior labial, anterior lingual, and long buccal regions as well as inferior alveolar and lingual nerve block. It describes the relevant anatomy, patient positioning, needle selection, injection sites, and steps for each technique. The goal is to effectively anesthetize the nerves supplying sensation to the mandibular teeth and surrounding tissues.
maxillary nerve block
This document provides information on the maxillary nerve block technique. It begins with an overview of the trigeminal nerve and its branches, including the maxillary nerve. It then describes the course and branches of the maxillary nerve in detail. It discusses the pterygopalatine ganglion and its branches. The document outlines different maxillary nerve block techniques including posterior superior alveolar, anterior superior alveolar, greater palatine, and nasopalatine nerve blocks. It concludes with a description of a maxillary nerve block and intraligamentary anesthesia technique.
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Mandibular Anesthesia : Inferior alveolar nerve block
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Tongue-Gross Anatomy & Applied Aspects. Dr.N.Mugunthan.M.S
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Similar to Temporal and infratemporal region part 2
cranial nerve 5 detailed decription and presentation
cranial nerve 5 detailed decription and presentation
I am sharing 'trigeminal nerve' with you
The trigeminal nerve is the largest cranial nerve. It has both sensory and motor components. It has three major divisions - the ophthalmic, maxillary, and mandibular nerves. The ophthalmic nerve innervates the eye and parts of the forehead. The maxillary nerve travels through the pterygopalatine fossa and orbits to supply parts of the face, nasal cavity and oral cavity. The mandibular nerve divides into anterior and posterior branches to innervate muscles of mastication and relay sensory information from the lower face and teeth.
Prof. laila kAU Trigeminal Nerve .
The trigeminal nerve is the largest of the cranial nerves. It has both sensory and motor fibers. It has three main divisions - the ophthalmic, maxillary, and mandibular nerves. The ophthalmic nerve innervates parts of the face around the eyes. The maxillary nerve innervates parts of the face around the nose and mouth. The mandibular nerve is mixed and innervates muscles of mastication as well as parts of the face, tongue and mouth.
Trigeminal nerve and its dental implications
trigeminal as known as dental nerve plays very important role in dentistry
every dental student must have through knowledge about the nerve
Trigeminal nerve
The trigeminal nerve is a mixed nerve that is the largest of the cranial nerves. It has both sensory and motor functions. Sensory branches provide sensation to the face and motor branches innervate the muscles of mastication. The trigeminal nerve has three major divisions - ophthalmic, maxillary, and mandibular nerves. These divisions branch further to innervate specific regions of the face. The trigeminal ganglion contains the cell bodies of pseudounipolar neurons that relay sensory information from the face to the brainstem trigeminal nuclei.
ix x.pptx
The trigeminal nerve is the largest of the cranial nerves. It has both sensory and motor functions. Sensory fibers carry general somatic afferent information from the face to the trigeminal ganglion. Motor fibers innervate the muscles of mastication. The trigeminal nerve emerges from the pons and divides into three main branches: the ophthalmic, maxillary, and mandibular nerves. These branches innervate different regions of the face and cranium, carrying sensory information and motor commands. Injuries or diseases of the trigeminal nerve can cause sensory deficits or neuropathic pain conditions like trigeminal neuralgia.
Facial nerve234
The facial nerve is the seventh cranial nerve that controls facial muscle movement and receives taste sensations from parts of the tongue and palate. It exits the skull through the stylomastoid foramen and divides into 5 terminal branches in the parotid gland. Facial nerve paralysis can occur due to dental injections if the local anesthetic is deposited near the nerve branches in the parotid gland. Bell's palsy is a common cause of unilateral facial paralysis and is thought to be caused by herpes simplex virus infection. Care must be taken during parotid gland surgery and TMJ procedures to avoid damaging the facial nerve branches.
3.TRIGEMINAL NERVE.pptx
The trigeminal nerve is the fifth cranial nerve that has both motor and sensory components. It has three main divisions - the ophthalmic, maxillary, and mandibular nerves. The ophthalmic nerve innervates the eye and surrounding structures. The maxillary nerve provides sensation to the midface and upper teeth. The mandibular nerve is a mixed nerve that supplies motor innervation to the muscles of mastication and sensation to the lower face and teeth. Disorders of the trigeminal nerve include trigeminal neuralgia, which causes severe facial pain, and herpes zoster ophthalmicus, which causes shingles in the eye region.
Mandibular nerve dental surgery
The mandibular nerve is the largest of the three divisions of the trigeminal nerve. It is made up of both sensory and motor roots. It supplies sensation to the lower face, teeth, gums, lower lip, chin, and anterior two-thirds of the tongue. It also innervates the muscles of mastication. The mandibular nerve divides into anterior and posterior branches which further divide to innervate the muscles and skin of the face and mouth.
Parasympathetic ganglia of Head and Neck
Introduction about ANS. types of parasymphattheytic ganglion connections with very good quality pictures
quick revision at the end
Trigeminal Nerve (Mandibular Division) Introduction
The trigeminal nerve emerges from the side of the pons and has sensory and motor functions. It divides into three main branches - the ophthalmic, maxillary, and mandibular nerves. The mandibular nerve is the largest division and supplies sensation to the lower face and motor function to the muscles of mastication. It gives off several branches including the mylohyoid, lingual, and inferior alveolar nerves.
Trigeminal nerve (1)
trigeminal nerve : 5th cranial nerve , its course and distribution
related diseases
clinical implications
Cranial nerves-ii-by-prof-dr-nader-elnemr
The trigeminal nerve (V) is the largest cranial nerve with three major divisions - the ophthalmic (V1), maxillary (V2), and mandibular (V3) nerves. The ophthalmic nerve innervates the lacrimal gland and skin of the eyelids, forehead, and nose. The maxillary nerve innervates the skin of the face and side of the nose and carries parasympathetic fibers to the lacrimal gland. The mandibular nerve has both motor and sensory components, innervating the muscles of mastication and the skin of the chin.
Trigeminal
شرح الtrigeminal nerve بصوره سهله ةبسيطه
لا تنسوا الاشتراك في القناه ليصلكم فيديو الشرح
https://www.youtube.com/channel/UC4ShQuhSqGknadojsERHiHg
Cranial nerves
This document describes the anatomy and function of cranial nerve VIII (vestibulocochlear nerve). It notes that CN VIII has two parts - the cochlear part which carries hearing impulses and the vestibular part which carries equilibrium impulses. The auditory pathways that transmit hearing signals from the inner ear to the brainstem and auditory cortex are then described. Finally, the document discusses some clinical correlations of lesions to CN VIII, including causes of hearing loss.
Anatomy of Cranial Nerves 5,7,8
The document discusses the development, anatomy, and function of three cranial nerves: the trigeminal nerve (CN V), the facial nerve (CN VII), and the vestibulocochlear nerve (CN VIII). It describes the nuclei, course, branches, and sensory/motor functions of each nerve in detail.
Trigeminal nerve ppt
This presentation contains the detailed description about the courses, branches and supply of the Trigeminal Nerve, contains variations of maxillary nerve & Mandibular Nerve, and the detail about trigeminal Neurolgia and its managements
Applied anatomy of maxillary nerve
The maxillary nerve originates from the trigeminal ganglion and provides sensory innervation to much of the face and upper teeth. It gives off several branches that innervate the nasal cavity, palate, gums, upper teeth, lower eyelid, upper lip and cheek. Maxillary nerve blocks are commonly used in dental procedures to anesthetize these areas by injecting local anesthetic near branches of the nerve. The document discusses the anatomy and branches of the maxillary nerve in detail.
FACIAL NERVE SEMINAR BY DIPESH MDS1.pptx
The document discusses the facial nerve (CN VII), including its nuclei of origin, functional components, course through the skull, branches and distribution. It provides motor innervation to the muscles of facial expression and special sensory innervation for taste. Within the facial canal it gives off the chorda tympani, nerve to stapedius and greater petrosal nerve. Its five terminal branches innervate muscles of the face and scalp.
Innervation of teeth
1. The trigeminal nerve is the largest of the twelve cranial nerves and provides sensory innervation to the face and motor innervation to the muscles of mastication.
2. It has three major divisions - the ophthalmic, maxillary, and mandibular nerves. The ophthalmic nerve is sensory and innervates the eye and surrounding structures. The maxillary nerve is sensory and innervates facial structures in the cheek region. The mandibular nerve has both sensory and motor fibers that innervate the chin and lower face regions and muscles of mastication respectively.
3. Each division has numerous branches that provide detailed sensory and motor innervation to the face, oral cavity,
Similar to Temporal and infratemporal region part 2 (20)
cranial nerve 5 detailed decription and presentation
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Trigeminal Nerve (Mandibular Division) Introduction
Trigeminal Nerve (Mandibular Division) Introduction
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This document provides an overview of the anatomy of the urinary bladder and urethra. It describes the location, size, shape, surfaces, and relations of the urinary bladder. It also details the interior structures of the bladder including the trigone, ureteric orifices, and internal urethral meatus. The document then discusses the ligaments, blood supply, nerve supply, and lymphatic drainage of the bladder. Finally, it provides descriptions of the male and female urethra including their parts, sphincters, and surrounding structures.
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The document provides detailed information about the posterior abdominal wall, diaphragm, abdominal aorta, inferior vena cava, and lumber plexus as presented by Dr. Mohamed Elfiky. It describes the origin, insertion, course, branches, and relations of these structures. Key points include that the diaphragm separates the thoracic and abdominal cavities and is innervated by the phrenic nerves. The abdominal aorta descends in front of the lumbar vertebrae and gives off various branches. The IVC forms from the common iliac veins and pierces the diaphragm to drain into the right atrium. The lumbar plexus emerges from the psoas major
Anatomy of anterior abdominal wall
The document describes the anatomy of the anterior abdominal wall, including the abdominal planes and regions, layers of the anterior abdominal wall such as the external oblique muscle, inguinal ligament, internal oblique muscle, cremasteric muscle, transversus abdominis muscle, and rectus abdominis muscle. It also discusses the rectus sheath, inguinal canal, superficial inguinal ring, and related structures.
anatomy of Perineum anal triangle
1. The internal iliac artery arises from the common iliac artery and ends by dividing into anterior and posterior divisions within the pelvis.
2. It gives off branches that supply structures within the pelvis such as the bladder, reproductive organs, and rectum.
3. The internal pudendal artery is one of its anterior division branches, and it gives off the inferior rectal artery and branches that supply the genital region.
anatomy of Perineum urogenital triangle
The document discusses the anatomy of the perineum region in males and females. It describes key structures like the urogenital triangle, anal triangle, levator ani muscle, pelvic fascia, perineal membrane, superficial and deep perineal pouches, urogenital diaphragm, and perineal body. It provides details on the layers of fascia in the region, contents of the pouches, functions of the perineal body, and injuries that can occur like lacerations or episiotomies. The document is authored by Dr. Mohamed El fiky, Professor of anatomy and embryology.
anatomy of Pancreas
The pancreas is an elongated gland that extends transversely across the posterior abdominal wall from the duodenum to the spleen. It has a head, neck, body, and tail. The head is flattened and occupies the concavity of the duodenum. The neck joins the head to the body. The triangular body extends to the left, crossing the median plane opposite L1. The tail passes between the layers of the lienorenal ligament to relate to the spleen. The main pancreatic duct drains the tail and passes towards the head, uniting with the common bile duct in the duodenum.
anatomy of Liver and biliary system
The liver document provides a summary of the anatomy and structures of the liver in 3 paragraphs or less:
The liver is the largest visceral organ located primarily in the right hypochondrium and epigastric region, extending into the left hypochondrium. It has 4-5 lobes and is connected to other structures by ligaments such as the falciform ligament. The liver receives blood from the portal vein and hepatic artery and excretes bile through the left and right hepatic ducts which join to form the common hepatic duct along with the cystic duct from the gallbladder. This forms the common bile duct which terminates at the ampulla of Vater in the duodenum.
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The document summarizes the male genital organs, including the prostate, testes, epididymis, vas deferens, seminal vesicles, ejaculatory ducts, bulbourethral gland, and spermatic cord. It describes the structure, location, blood supply, and relations of each organ. The prostate is described as having lobes and being surrounded by capsules. The testes produce sperm and hormones and have seminiferous tubules joined to the rete testis. The epididymis stores and matures sperm from the testes. The vas deferens and seminal vesicles transport sperm and fluids, joining to form the ejaculatory ducts.
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anatomy of Female genital organs [auto saved]
The document describes female genital organs, including the uterus, fallopian tubes, ovaries, and associated ligaments. It notes that the uterus is pear-shaped and located in the pelvis between the rectum and bladder. It has three parts: the fundus, body, and cervix. The fallopian tubes extend from the lateral angles of the uterus to the ovaries. The ovaries are connected to the broad ligament by the mesovarium and ovarian ligament. The broad ligament divides the pelvis and contains the fallopian tubes, ovaries, and uterine vessels.
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The document discusses the blood supply of the gut. It is divided into three parts: the foregut, midgut, and hindgut. The foregut receives its blood supply from the celiac trunk. The midgut is supplied by the superior mesenteric artery. The hindgut receives its blood supply from the inferior mesenteric artery. It then describes the branches and blood supply areas of each of these arteries in detail. It also discusses the portal vein and its tributaries, which drain the venous blood from the structures supplied by these arteries.
Development of head and neck
The document discusses the development of structures in the head and neck region from pharyngeal arches and pouches during weeks 4-8 of human embryo development. Key structures that develop include:
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Cranial nerves neuroanatomy
This document discusses the anatomy and functional components of the 12 cranial nerves. It provides names and classifications of each nerve as sensory, motor, or mixed. It describes the deep origin nuclei and fiber types of each nerve, including their development, branches to visceral arches, and types of sensations carried. Diagrams are included to illustrate cranial nerve nuclei and fiber classifications. The glossopharyngeal nerve section provides more detail on its afferent and efferent nuclear origins and fibers.
Anatomy of scalp and face
The scalp receives its blood supply from branches of the external carotid artery and the ophthalmic artery. The main arteries supplying the scalp are the superficial temporal artery, the posterior auricular artery, and the occipital artery. Venous drainage of the scalp occurs through the external jugular vein and anterior jugular veins. Sensory innervation of the scalp is provided by branches of the trigeminal nerve and cervical nerves depending on the location on the scalp.
Introduction to anatomy bmc
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Fetal membranes , placenta and twins
The document discusses fetal membranes including the amnion, chorion, yolk sac, allantois, and umbilical cord. It describes their development, structure, and functions. The amniotic fluid is mainly composed of water and plays various roles in fetal growth. The chorion develops from the trophoblast and contains villi that contribute to placental formation. The placenta forms from the chorionic villi and decidua basalis and functions to exchange gases, nutrients, and waste between the maternal and fetal blood without mixing.
Development of the heart tube
The document describes the development of the heart tube and fetal circulation in the embryo. It discusses how:
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- The heart tube loops and partitions into chambers, with the atria forming separately from the ventricles.
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Development of urinary system
The three kidney systems - pronephros, mesonephros, and metanephros - develop sequentially in humans. The pronephros is rudimentary and nonfunctional, while the mesonephros may function briefly in early fetal development. The metanephros forms the permanent kidneys. It develops from the ureteric bud and metanephric mesoderm, with the bud forming the collecting system and mesoderm forming nephrons. Nephrons continue developing until birth, and urine production begins early in gestation. The kidneys ascend from the pelvis to the abdomen during development. The urinary bladder and urethra also develop from the urogenital sinus and
Oral cavity palate - pharynx
The document describes the anatomy of the head and neck region, specifically focusing on the oral cavity and pharynx. It is divided into several sections that describe: 1) the oral cavity including the oral vestibule and oral cavity proper, 2) the floor of the mouth including structures like the frenulum and papillae, 3) the tongue including its muscles and blood supply, 4) the palate including the hard and soft palate, and 5) the pharynx including its walls, muscles like the constrictors, and structures like the tonsils. Each section provides details on the boundaries, structures, and relations of the different anatomical regions within the head and neck.
Vessels of the head and neck
The document describes the major arteries of the head and neck region, including:
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Diagnosis and Staging
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Endocrine Therapy
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Aromatase Inhibitors (AIs): These drugs, including anastrozole, letrozole, and exemestane, lower estrogen levels by inhibiting the aromatase enzyme, which converts androgens to estrogen in peripheral tissues. AIs are generally preferred in postmenopausal women due to their efficacy and safety profile compared to tamoxifen.
Selective Estrogen Receptor Downregulators (SERDs): Fulvestrant is a SERD that degrades estrogen receptors and is used in cases where resistance to other endocrine therapies develops.
Combination Therapies
Combining endocrine therapy with other treatments enhances efficacy. Examples include:
Endocrine Therapy with CDK4/6 Inhibitors: Palbociclib, ribociclib, and abemaciclib are CDK4/6 inhibitors that, when combined with endocrine therapy, significantly improve progression-free survival in advanced HR+ breast cancer.
Endocrine Therapy with mTOR Inhibitors: Everolimus, an mTOR inhibitor, can be added to endocrine therapy for patients who have developed resistance to aromatase inhibitors.
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Temporal and infratemporal region part 2
- 1. Head and Neck Temporal and Infratemporal regions part II (Mandibular Nerve and Otic Ganglion) Dr. Mohamed El fiky Professor of anatomy and embryology
- 2. Trigeminal Nerve Mandibular Division The Mandibular Nerve Origin :It is a branch of trigeminal nerve Exit from the Skull: It comes out from the skull through foramen ovale
- 3. Tensor Palati Large Sensory RootSmall Motor Root Lateral Pterygoid Middle Meningeal A Anterior Division Posterior Division Roots: The mandibular nerve has 2 roots motor root and sensory root Course and Relations : • The mandibular nerve run for a short course in the cranial cavity then it comes out from the the skull through foramen ovale . • In the infratemporal fossa the nerve trunk is deep to the lateral ptregoid muscle and it divided into 2 division , anterior division and posterior division The Mandibular Nerve
- 5. V1 V2 1- Nerve to Medial pterygoid Nerve to Tensor palati Motor root Mandibular nerve (V3 (Medial Veiw) Nerve to Tensor tympani 2- Nervous spinosus Medial Pterygoid Muscle Lateral Pterygoid Muscle Otic Ganglion Branches of The Mandibular Nerve A- Branches from the Trunk
- 6. 1-Nerve to Lateral Pterygoid 2- Deep temporal nerves 3- Masseteric nerve 4- Buccal nerve B- Branches from the Anterior Division
- 7. 1- Auriculotemporal nerve 2- Inferior Alveolar nerve 3- Lingual nerve C- Branches from the Posterior Division 1- Auriclotemporal 2- inferior alveolar 3- Lingual nerve .
- 8. Auriculotemporal Nerve Middle meningeal Artery Sphenomandibular Ligament Capsule of TMJ 1- Auriculotemporal NerveOrigin, Course and Relations
- 9. Auriculotemporal nerve Parotid Gland 1- Auriculotemporal NerveOrigin, Course and Relations
- 10. Upper 2/3rd of Outer Surface of External Ear External auditory meatus Outer layer of Tympanic membrane Fibers inside Auriculotemporal Nerve 1- Sensory Fibers
- 12. Inferior Salivatory Nucleus Inferior Ganglion of Glossopharyngeal Nerve Glossopharyngeal Nerve Nerve of Jacopson Tympanic PlexusLesser Superficial Petrosal Otic Ganglion Fibers inside Auriculotemporal Nerve 2- Autonomic Fibers
- 13. Inferior alveolar nerve Sphenomandibular ligament Lingual nerve Medial Pterygoid Muscle Lateral Pterygoid Muscle Nerve to Myelohyoid Inferior alveolar Vessels 2- Inferior Alveolar Nerve :Origin, Course and Relations
- 14. Inferior alveolar nerve Nerve to Myelohyoid Incisive branch Mental nerve Branch to molar and Premolar teeth Inferior alveolar nerve Inside the mandibular canal Distribution of Inferior Alveolar Nerve
- 15. Mylohyoid nerve The Mylohyoid Nerve
- 16. Nerve to Mylohyoid Nerve to anterior belly of digastric muscled The Mylohyoid Nerve
- 17. Chorda Tympani Inferior Alveolar nerve Lingual nerve 3- Lingual Nerve Course : The lingual nerve arise from the posterior division it is deep to lateral pterygoid and it joined with the chorda tympani nerve . The lingual nerve pass between the styloglosus muscle and root of the last molar . The lingual nerve pass on the hyoglosus muscle . The lingual nerve hook around the submandibular salivary duct then it inter the tongue to supply the anterior 2/3 of the tongue
- 18. Medial Pterygoid Muscle Lingual nerve Lateral Pterygoid Muscle Styloglossus Muscle Last molar tooth Superior Constrictor of Pharynx
- 19. Anterior 2/3rd of tongue Floor of mouth Inside of gums Parynchma of Sublingual and Submandibular glands Distribution of Lingual Nerve 1- Sensory Fibers of Lingual Nerve
- 20. Autonomic fibers to Sublingual and Submandibular glands 2- Autonomic fibers Distribution of Lingual Nerve
- 21. Tensor Veli Palati 1- Sensory Root from Auriculo-temporal Ner 2- Sympathetic Ro from Sympathetic Plexu around Middle Meningeal 3- Parasympathetic Root from Lesser Petrosal Nerve Otic Ganglion Site :Infra temporal fossa deep to lateral ptregoid muscle below foramen ovale Roots : 1- sympathetic root : sympathetic plexus around middle meningeal artery 2- sensory root : from aurcilo-temporal nerve . 3- parasympathetic root : lesser petrosal nerve .
- 22. Inferior Salivatory Nucle Inferior Ganglion of Glossopharyngeal Nerv Glossopharyngea Nerve Nerve of Jacopson Tympanic PlexusLesser Superficial Petrosal Otic Ganglion