muscles of soft palate/ divisions of pharynx

Question 1

Origin and insertion of tensor veli palatini

Answer 1

origin: scaphoid fossa, entire length of fibrous part of auditory tube, spine of sphenoid

Insertion: palatine aponeurosis

Question 2

Innervation of tensor veli palatini

Answer 2

V3 branch of medial pterygoid

Question 3

action of tensor veli palatini

Answer 3

tense soft palate

open auditory tube

Question 4

Origin and insertion of levator veli palatini

Answer 4

Origin: petrous part of the temporal bone anterior to carotid canal

Insertion: palatine aponeurosis

Question 5

Innervation of levator veli palatini

Answer 5

CN X via pharyngeal plexus

Question 6

action of the levator veli palatini

Answer 6

elevate soft palate

Question 7

origin and insertion of palatopharyngeus

Answer 7

origin: palatine aponeurosis
insertion: pharyngeal wall

Question 8

innervation of palatopharyngeus

Answer 8

CN X via pharyngeal plexus

Question 9

action of palatopharyngeus

Answer 9

depress soft palate or elevate pharynx

narrow fauces

Question 10

Origin and insertion of palatoglossus

Answer 10

origin: palatine aponeurosis
insertion: lateral tongue

Question 11

innervation of palatoglossus

Answer 11

CN X via pharyngeal plexus

Question 12

action of palatoglossus

Answer 12

depress soft palate or elevate rear of tongue

narrow fauces

Question 13

Origin and insertion musculus uvulae

Answer 13

origin: central posterior hard palate (posterior nasal spine)
insertion: uvula

Question 14

Innervation of musculus uvulae

Answer 14

CN X via pharyngeal plexus

Question 15

action of musculus uvulae

Answer 15

thickens central soft palate

shortens uvula

Question 16

What is the GSA innervation of the nasopharynx?

Answer 16

CN V2-maxillary

CN IX- glossopharyngeal

Question 17

What is the GSA innervation of the oropharynx?

Answer 17

CN IX - glossopharyngeal

Question 18

What is the GSA innervation of the laryngopharynx?

Answer 18

CN X - Vagus

Question 19

What structures/spaces are present in the nasopharynx?

Answer 19

1. choanae, 2. pharyngeal tonsil, 3. pharyngeal recess, 4. torus tubarius/auditory tube opening, 5. salpingopharyngeal fold

Question 20

What structures/spaces are present in the oropharynx?

Answer 20

1. soft palate/uvula/palatopharyngeal folds

2. palatoglossal folds

Question 21

What structures/spaces are present in the laryngopharynx?

Answer 21

1. epiglottis, 2. aryepiglottic folds, 3. laryngeal inlet, 4. mucosa over arytenoid cartilages, 5. posterior aspect of cricoid carilage (lamina), 6. piriform recesses