Salivary glands antomy
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The document summarizes the anatomy of the parotid and submandibular salivary glands. It describes the location, structure, relations to surrounding tissues, blood supply, nerve supply, and duct system of each gland. Key details include that the parotid gland is the largest salivary gland located near the ear, and the submandibular gland has superficial and deep parts located under the mandible in the digastric triangle region.
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This document summarizes the anatomy and physiology of salivary glands. It describes the major and minor salivary glands, including their location and secretions. The parotid, submandibular, and sublingual glands are identified as the major salivary glands. Saliva secretion is stimulated by taste and mastication and helps with digestion, lubrication, and antimicrobial functions in the mouth. The glands contain serous and mucous acini, as well as ducts that modify and transport saliva out of the glands and into the oral cavity.
Salivary Glands
1. The major salivary glands are the parotid, submandibular, and sublingual glands. The parotid gland is the largest and lies below the ear.
2. Common diseases of the parotid gland include acute suppurative parotitis caused by bacterial infection, and pleomorphic adenoma which is the most common benign tumor.
3. The submandibular gland lies under the jaw and drains via Wharton's duct into the mouth. Diseases include sialadenitis from duct obstruction and rare tumors.
4. Minor salivary gland diseases include ranulas and tumors which often present in the palate and are frequently malignant.
Anatomy of salivary gland/ oral surgery courses
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Salivary glands
This document summarizes the anatomy and surgical approaches related to the major salivary glands. It describes the location and relations of the parotid, submandibular, and sublingual glands. For each gland, it details the blood supply, lymphatic drainage, and nerve supply. It also outlines the surgical approaches for removing or accessing portions of each gland, including superficial and total parotidectomy, and intraoral, extraoral, and transoral approaches for the submandibular and sublingual glands. Key anatomical structures addressed include the facial nerve branches in the parotid and relations to the lingual and hypoglossal nerves for the submandibular and sublingual g
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This document discusses evaluation of salivary glands. It begins with an introduction to salivary glands and saliva. It then describes methods for clinical examination of salivary glands including visual examination, palpation, and measuring salivary flow rates. It also discusses various radiological techniques used in evaluation of salivary glands such as sialography, ultrasonography, scintigraphy and MRI. Finally, it briefly covers classification and descriptions of common salivary gland diseases.
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Parotidectomy
1) Parotidectomy is performed to remove tumors or treat infections of the parotid gland. It involves dissecting around the facial nerve to preserve function.
2) The facial nerve is the key anatomical structure and must be carefully identified and protected throughout the surgery. Landmarks like the tympanomastoid suture line help locate the nerve.
3) The surgery can range from partial removal of the superficial lobe for benign tumors to total removal of the entire gland for high grade malignancies. Meticulous hemostasis and drainage are important for wound healing.
Salivary glands 0
The parotid gland is the largest salivary gland. It secretes serous fluid and is located below and in front of the ear. The submandibular gland is partly below and deep to the mandible. It has superficial and deep parts and secretes both serous and mucous fluids. The parotid and submandibular glands receive parasympathetic innervation from the facial and glossopharyngeal nerves respectively to stimulate secretion. Both glands have multiple anatomical relationships with surrounding structures.
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The parotid, submandibular, and sublingual glands are the three major salivary glands in the human body. The parotid gland is the largest salivary gland located below and in front of each ear. The submandibular gland is located beneath the lower jaw bone and has both superficial and deep lobes. The sublingual gland is found under the tongue in the floor of the mouth and has multiple ducts that drain into the submandibular duct. All three glands are supplied by both parasympathetic and sympathetic nerves and have roles in secreting saliva to aid in digestion.
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This document provides an overview of the salivary glands, including their anatomy, physiology, and functions. It describes the major salivary glands - the parotid, submandibular, and sublingual glands - as well as the minor salivary glands. It discusses the structure, location, relations, blood supply, innervation, and duct system of each gland. It also covers the composition and role of saliva, as well as the neural control of salivary secretion.
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Parotid gland
The parotid gland is the largest salivary gland located below and in front of the ear. It is invested by a thick fascial capsule. The facial nerve exits the skull and passes through the gland, dividing into branches that supply facial muscles. The parotid duct exits from the anterior border of the gland and opens into the mouth. The gland receives blood supply from the external carotid artery and drains into local lymph nodes and veins leading to the internal and external jugular veins.
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The document describes the major salivary glands - parotid, submandibular and sublingual glands. It details the location, structure, relations, blood supply and applied anatomy of each gland. The parotid gland is the largest salivary gland located in the preauricular region. The submandibular gland is situated in the submandibular triangle below the mandible. The sublingual gland is the smallest gland located beneath the oral mucosa.
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Salivary glands antomy
- 1. Anatomy of Salivary Glands Dr. Ahmad Fathy El Hussainy Lecturer of General Surgery Ain Shams University
- 2. Parotid Gland - It is the largest salivary gland - Secretes serous fluids
- 4. Relations
- 5. Relations Upper Part 1.Superficial Temporal vessels. 2.Auriculotemporal nerve. 3.Cartilaginous part of External Auditory Meatus. 4.Temporal branch of Facial
- 6. Relations Lower Part 1.Cervical branch of Facial n. 2.Retromandibular vein. 3.Posterior belly of digastric. 4.External Carotid artery.
- 7. Relations • Zygomatic branch of Facial n. • Transverse Facial artery. • Buccal branch of Facial n. • Accessory Parotid gland. • Parotid duct. • Mandibular branch of Facial n. Anterior Border
- 8. Relations Lateral Surface 1.Great Auricular nerve. 2.Parotid lymph nodes. 3.Skin and Fascia
- 9. Relations Antero-Medial Surface 1.Ramus of the mandible. 2.Masseter muscle. 3.Medial pterygoid muscle
- 10. Relations Postero-Medial Surface 1.Mastoid process 2.Sternomastoid muscle 3.Posterior belly of Digastric 4.Styloid process and the muscle & ligaments attached to it. 5.Internal carotid artery & Internal jugular vein (carotid sheath).
- 11. Relations Structures within the Gland 1.External carotid artery 2.Retromandibular vein 3.Facial nerve
- 14. Accesory Part Semidetached part of the gland, which lies just above the parotid duct
- 15. Parotid Duct 5 cm long & emerges from the anterior border & runs superficial to masseter m.
- 16. Parotid Duct Then pierces the buccinator to open in the vestibule of mouth, opposite the upper 2nd molar tooth
- 17. Arterial Supply External Carotid Artery Venous Drainage Retromandibular Vein
- 18. Nerve Supply 1. Sensory: Auriculotemporal nerve a. Capsule: a. Gland: Great Auricular nerve
- 19. Nerve Supply 2. Sympathetic: From the sympathetic plexus around the external carotid.
- 20. Nerve Supply 3. Parasympathetic: The secretomotor fibers arise from the inferior salivary nucleus in the medulla oblongata. Joins the glossopharyngeal nerve (9th cranial) Leaves the 9th nerve through its tympanic branch which enters the middle ear where it joins the tympanic plexus. Lesser Petrosal nerve arises from the tympanic plexus as a continuation of the tympanic branch Enters the foramen ovale to relay in the otic ganglion Joins auriculotemporal nerve through which they reach the gland Medulla Oblangata Inferior Salivary Nucleus Glossopharyngeal n. Tympanic Plexus Lesser Petrosal n. Otic Ganglion Auriculotemporal n.
- 21. Surface Anatomy of Parotid Gland Head of Mandible Middle of Masseter m. 2 cm below Angle of Mandible Mastoid Process
- 22. Surface Anatomy of Parotid Duct Tragus of the ear Midway between the ala of the nose and the angle of the mouth Middle ⅓ of the horizontal line
- 24. Site Digastric triangle, partly below & partly deep to the mandible
- 25. Parts 1. Superficial part 2. Deep part 3. Submandibular duct Superficial part Deep part Submandibular duct
- 26. Superficial Part Wedge shaped, extending: Posteriorly: to the angle of mandible. Superiorly: to mylohyoid line of mandible. Inferiorly: it overlaps the 2 bellies of digastric m
- 27. Relations 1. Inferolateral surface: related to skin, superficial fascia (containing platysma, cervical branch of facial n., ant. facial v., LNs) & deep fascia. 2. Lateral surface: related to body of mandible, facial a., mylohyoid n. & a. 3. Medial surface: related to 2 muscles (mylohyoid & hyoglossus) & 2 nerves (lingual & hypoglossal).
- 28. Triple Relations of Facial Artery to the Gland Facial a.
- 29. Triple Relations of Lingual Nerve to the Duct Lingual n. Hypoglossal n.
- 30. Deep Part Small part lying deep to mylohyoid Superficial to hyoglossus Between lingual n. above & hypoglossal n. below Mylohyoid Lingual n.
- 31. Submandibular Duct 5cm long Triple relations with the lingual nerve Lingual n.
- 32. Submandibular Duct 5cm long Triple relations with the lingual nerve Opening into the floor of mouth close to frenulum of the tongue Frenulum
- 33. Nerve Supply 1.Sensory: Lingual nerve 2.Sympathetic: Plexus around the facial artery 3.Parasympathetic: Chorda tympani from Facial nerve
- 34. Thank You