Palate and Glands Flashcards
name the 5 muscles of the palate and what they are innervated by
- tensor veli palatini - a pterygoid branch of V3
- levator veli palatini - CN X - pterygoid plexus
- musculus uvulae - CN X - pterygoid plexus
- palatopharyngeus - CN X - pterygoid plexus
- palatoglossus - CN X - pterygoid plexus
name the 5 arteries that supply the palate and what they are branches of
- sphenopalatine a. - 3rd part of maxillary a.
- greater palatine a. - 3rd part of maxillary a.
- lesser palatine a. - 3rd part of maxillary a.
- ascending palatine a. - branch of facial a.
- ascending pharyngeal a. - branch of ECA
the ascending palatine and ascending pharyngeal aa. supply what?
soft palate
what opening does the sphenopalatine a. go through?
incisive foramen
what opening does the greater palatine a. go through?
greater palatine foramen
what opening does the lesser palatine a. go through?
lesser palatine foramen
what 2 bones form the palate?
maxilla and palatine
what nerves supply these areas?
**because this is sensory, it is actually the long buccal nerve.
the buccal n. (branch of VII) provides motor innervation of the buccinator
describe the sublingual gland
- beneath tongue, medial to mandible, superior to mylohyoid
- bartholin duct drains into floor of mouth via sublingual caruncle
- innervation: VII, chorda tympani via V3 lingual n.
- vascular supply: sublingual a., branch of lingual a.
- produces 5% saliva, mixed, but mostly mucus
describe the submandibular gland
- below masseter, medial to mandible
- warhtin’s duct drains into floor of mouth via sublingual caruncle
- innervation: VII, chorda tympani via V3 lingual n.
- vascular supply: facial a.
- produces 70% of saliva, mixed mucous and serous, amalase
describe the parotid gland
- located anterior/inferior to the ear
- stensen’s duct drains into rear/upper cheek area
- innervation: CN IX, lesser petrosal n. via V3 auriculotemporal n.
- vascular supply: transverse facial branches of superficial temporal a., ECV
- produces 10-20% of saliva, amalase, breakdown of starch, serous
describe clinical significance of glands of the head
- Parotid – Poor inferior alveolar blocks – bells palsy, temporary
- Stones (Sialoliths) – blocked ducts, pain, swelling
- Bacterial infection (Sialadenitis) – blocked duct, pain, swelling, foul pus in mouth
- Viral infection – mumps, flu, Epstein-Barr, HIV; bilateral
- Sjogren’s syndrome – autoimmune – dry mouth and eyes