Pharyngeal Muscles

Question 1

cricopharyngeus arises from? action? Innervation?

Answer 1

cricoid cartilage and inserts on the median dorsal raphe of the laryngopharynx. aid in swallowing. (most caudal muscle)
Pharyngeal branches of glossopharyngeal and vagus nerves

Question 2

Hyopharyngeus arises from? action? Innervation?

Answer 2

from the thyrohyoid/ceratohyoid bone to the median dorsal raphe of the pharynx. aids in swallowing (most rostral muscle)

Pharyngeal branches of glossopharyngeal and vagus nerves

Question 3

thyropharyngeus arises from? action? Innervation?

Answer 3

lateral side of thyroid and inserts on median dorsal raphe of pharynx. aids in swallowing (between the two)

Pharyngeal branches of glossopharyngeal and vagus nerves

Question 4

Palatopharyngeus function and innervation?

Answer 4

Pharyngeal branches of glossopharyngeal and vagus nerves… function?

Question 5

Pterygopharyngeus function and innervation?

Answer 5

Pharyngeal branches of glossopharyngeal and vagus nerves: constricts and shortens the pharynx

Question 6

Stylopharyngeus fxn and innervation?

Answer 6

Pharyngeal branches of glossopharyngeal and vagus nerves: dilates pharynx

Question 7

levator veli palatini fxn and innervation?

Answer 7

Pharyngeal branches of glossopharyngeal and vagus nerves: raises caudel end of soft palate

Question 8

tensor veli palantini fxn and innervation?

Answer 8

Pharyngeal branches of glossopharyngeal and vagus nerves: stretches soft palate and open auditory tube