20. Oral Cavity and Pharynges (Wright) Flashcards Preview

15. Neuro Test 1 > 20. Oral Cavity and Pharynges (Wright) > Flashcards

Flashcards in 20. Oral Cavity and Pharynges (Wright) Deck (8)
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1
Q

Explain the innervation of the tongue.

A

Posterior ⅓, both sensation AND taste = glossopharyngeal.

Anterior ⅔ taste = facial

Anterior ⅔ sensory = lingual (branch of the mandibular N. [branch of CN V])

Movement for the entire tongue = hypoglossal

2
Q

Parasympathetic axons in what nerve stimulates parotid salivary secretions?

A

CN IX

Glossopharyngeal

3
Q

Parasympathetic axons in what cranial nerve stimulates salivary secretion in the sublingual and submandibular gland?

A

Facial N

4
Q

What stimulates mucus secretion from the sublingual gland?

A

Sympathetic fibers from the cervical ganglia.

5
Q
A
6
Q

What nerve can be found deep to the palatine tonsil?

A

The glossopharyngeal N.

7
Q

What three muscles depress the torus tubarius and open the eustachian tube?

A

Superior pharyngeal constrictor.

Tensor veli palatini.

Levator veli palatini.

8
Q

What happens if the tensor veli palatini or levator veli palatini are paralyzed?

What nerves innervate them?

A

Oral contents will reflux into the oral cavity.

Levator veli palatini is the laryngeal branch of the vagus N.

Tensor veli palatini is medial pterygoid (a branch of V3 — off of the trigeminal)