Oropharynx (Jaw)

Question 1

What are the 2 elevators of the mandible?

Answer 1

Masseter and temporalis

Question 2

What are the gliders of the mandible?

Answer 2

Medial and lateral pterygoid

Question 3

Action of the lateral pterygoid?

Answer 3

protrude

Question 4

Action of medial pterygoid with bilateral contraction?

Answer 4

Elevate, protrude.

Question 5

Action of pterygoid with unilateral contraction?

Answer 5

gliding side to side

Question 6

What are the 3 laryngeal elevators/mandible depressors?

Answer 6

digastric (ant & post belly)
mylohyoid
geniohyoid

Question 7

What is the function of the pharynx?

Answer 7

-resonating chamber for speech
-critical for swallowing and pushing food down into stomach

Question 8

What are the 3 pharyngeal constrictors?

Answer 8

1. Superior constrictor
2. Middle Constrictor
3. Inferior Constrictor (2 parts)

Question 9

Action of the constrictors (superior, middle, thyropharyngeus)?

Answer 9

Constricts the pharynx during swallowing and velopharyngeal closure

Question 10

Innervation of superior, middle, and thyropharyngeus?

Answer 10

CN 11 (XI)

Question 11

What is the weakest constrictor?

Answer 11

Superior

Question 12

What are the 2 inferior constrictors?

Answer 12

Thyropharyngeus and cricopharyngeus

Question 13

What is the thickest + strongest constrictor?

Answer 13

Thyryopharyngeus

Question 14

-Function of cricopharyngeus?

-Innervation?

Answer 14

Keeps esophagus closed at Upper Esophageal Sphincter, at rest

-pharyngeal branch, eSuperior Laryngeal Nerve and Recurrent Laryngeal Nerve of X

Question 15

Describe salpingopharyngeus

Answer 15

From eustachian tube down to the pharynx

-elevate pharynx when contracted to help push food

Question 16

Stylopharyngeus

Answer 16

Styloid process of temporal bone down to pharynx

-elevate pharynx when contracted to help push food

Question 17

Palatopharyngeus

Answer 17

From soft palate to pharynx
-elevates pharynx when contracted to help push food
-1 of the faucial pillars

Question 18

Ways to measure pharyngeal-oral function?

Answer 18

x-ray, cinemafluorography, ultrasound

Question 19

What is the role of the jaw in speech?

Answer 19

-Providing support for the tongue, may help compensate for tongue movements
-Issues with the jaw may effect tongue movements

Question 20

What are the 3 ways the jaw moves?

Answer 20

-Up and down
-Side to side
-Front to back