Salivary Glands Flashcards
Ogunsalu
Define the term salivary gland
Any cell or organ that discharges a secretion into the oral cavity
Name the major and minor salivary glands
Major: Parotid, Submandibular and Sublingual
Minor: Those that are on the tongue, palatine tonsils, palate, lips and cheek
Which gland is the largest
Parotid gland
What is the average weight of the parotid gland
25g
The parotid gland is enclosed in a thick fibrous capsule that is derived from?
Investing layer of the deep cervical fascia
Eagles Syndrome?
Eagle’s syndrome is a condition associated with the elongation of the styloid process or calcification of the stylohyoid ligament, clinically characterized by throat and neck pain, radiating into the ear.
Name the 4 surfaces of the Parotid gland
Superior (Base of pyramid)
Superficial
Anteromedial
Posteromedial
What are the 3 borders that separate the 4 surfaces of the parotid gland
Anterior
Posterior
Medial
Which nerve is close to the superior surface of the parotid gland
Auriculotemporal nerve
Which nerves run through the superficial fascia that covers the superficial surface of the parotid gland
Great auricular nerve and superficial parotid nerve
What are the relations of the anterior-medial surface of the parotid gland
Masseter
Lateral surface of TMJ
Medial pterygoid muscle
Branches of the facial nerve
Name the structures within the parotid gland
External carotid artery and its branches
Retromandibular vein
Facial nerve
Terminal branches of the ECA - that is the superficial temporal and the maxillary artery
How long is the stenson duct
5cm
Where does the stenson duct open
Into the vestibule of the mouth opposite the second upper molar tooth
What is the blood supply of the parotid gland
Branches of the External Carotid artery
The venous drainage of the parotid gland is into the
External Jugular Vein
What is the parasympathetic nerve supply of the parotid gland
Secretomotor via auriculotemporal nerve
Where is the superficial part of the submandibular gland situated
Digastric triangle and wedged between the body of the mandible and the mylohyoid muscle
What are the 3 surfaces of the submandibular gland
Inferior, medial and lateral
Which 2 nerves does Whartons duct run between
Lingual and Hypoglossal nerves
What crosses the submandibular duct at the anterior border of the hyoglossus
Lingual nerve
What is the blood supply of the submandibular gland
External Carotid
Nerve supply of the submandibular gland
Parasympathetic fibres from Chorda Tympani
Sensory fibers- lingual branch of mandibular nerve
Sympathetic fibres- Plexus of the facial artery
Nerve supply of the sublingual gland
Chorda tympani; parasympathetic innervation
Blood supply of sublingual gland
Sublingual and submental arteries
Which surface of the parotid gland does the external carotid artery enter through
Posterior medial surface
What are the relations of the superior surface of the parotid gland
Cartilagenous part of the external external acoustic meatous
Post part of the temporomandibular joint
auriculotemporal nerve
Superficial temporal vessel
Relations of the apex of the parotid gland
Post surface of the digastric muscles
Adjoining part of the carotid triangle
Relations of the superficial surface of the parotid gland
Skin
Superficial fascia
Branches of the great auricular nerve
Superficial parotid artery
Post fibres of the Platysma
Relations of the anterior medial surface
Masseter
Lateral surface of temporomandibular joint
Medial pterygoid
Branches of the facial nerve
Relations to the posteromedial surface
Mastoid process with the sternocleidomastoid and post belly of the digastric
Styloid process with structures attached to it
External carotid artery, which enters the parotid gland through this surface
Internal carotid artery which is deep to the styloid process
Which structures emerge from the anterior border of the parotid gland
Parotid duct
Terminal branches of the facial nerve
Facial vessels
Name the branches that the facial nerve splits into after passing through the parotid gland
5 branches:
Superficial temporal branch
Zygomatic branch
Buccal Branch- Superior and Inferior
Marginal Mandibular
Cervical
