Palate and Glands Flashcards

1
Q

name the 5 muscles of the palate and what they are innervated by

A
  1. tensor veli palatini - a pterygoid branch of V3
  2. levator veli palatini - CN X - pterygoid plexus
  3. musculus uvulae - CN X - pterygoid plexus
  4. palatopharyngeus - CN X - pterygoid plexus
  5. palatoglossus - CN X - pterygoid plexus
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2
Q

name the 5 arteries that supply the palate and what they are branches of

A
  1. sphenopalatine a. - 3rd part of maxillary a.
  2. greater palatine a. - 3rd part of maxillary a.
  3. lesser palatine a. - 3rd part of maxillary a.
  4. ascending palatine a. - branch of facial a.
  5. ascending pharyngeal a. - branch of ECA
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3
Q

the ascending palatine and ascending pharyngeal aa. supply what?

A

soft palate

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4
Q

what opening does the sphenopalatine a. go through?

A

incisive foramen

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5
Q

what opening does the greater palatine a. go through?

A

greater palatine foramen

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6
Q

what opening does the lesser palatine a. go through?

A

lesser palatine foramen

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7
Q

what 2 bones form the palate?

A

maxilla and palatine

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8
Q

what nerves supply these areas?

A

**because this is sensory, it is actually the long buccal nerve.

the buccal n. (branch of VII) provides motor innervation of the buccinator

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9
Q

describe the sublingual gland

A
  • 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
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10
Q

describe the submandibular gland

A
  • 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
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11
Q

describe the parotid gland

A
  • 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
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12
Q

describe clinical significance of glands of the head

A
  • 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
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