Lec 9 Oral/Dental

Question 1

Answer 1

Question 2

Answer 2

Question 3

Answer 3

Question 4

Answer 4

Question 5

Answer 5

Question 6

Answer 6

Question 7

Answer 7

Question 8

Answer 8

Question 9

Answer 9

Question 10

Answer 10

Question 11

What is the action of the tensor veli palatini?

Answer 11

tenses soft palate and opens mouth of pharyngotympanic tube during swallowing and yawning

Question 12

What is the action of the levator veli palatini?

Answer 12

elevates soft palate during swallowing and yawning

Question 13

What is the action of the palatoglossus?

Answer 13

elevates posterior part of tongue and draws soft palate onto tongue

Question 14

What is the action of the palatopharyngeus?

Answer 14

tenses soft palate and pulls walls of pharynx superiorly, anteriorly, and medially during swallowing

Question 15

What is the action of the musculus uvulae?

Answer 15

shortens uvula and pulls it superiorly

Question 16

What innervates the tensor veli palatini?

Answer 16

medial pterygoid nerve (branch of CN V3) via the otic ganglion

Question 17

What innervates the levator veli palatini, palatoglossus, palatopharyngeus, and musculus uvulae?

Answer 17

pharyngeal branch of vagus nerve (CN X)

Question 18

What are the intrinsic muscles of the tongue?

Answer 18

superior longitudinal
inferior longitudinal
transverse
vertical

Question 19

What are the muscles of the soft palate?

Answer 19

tensor veli palatini
levator veli palatini
palatoglossus
palatopharyngeus
musculus uvulae

Question 20

What are the extrinsic muscles of the tongue?

Answer 20

genioglossus
hyoglossus
styloglossus
palatoglossus

Question 21

What nerve does motor for most of the muscles of the tongue?

Answer 21

hypoglossal (CN XII)

Question 22

What nerve does motor for the palatoglossus muscle of the tongue?

Answer 22

vagus nerve (CN X)

Question 23

What nerve does general sensory for the anterior 2/3 of the tongue?

Answer 23

lingual nerve (CN V3)

Question 24

What nerve does special sensory for the anterior 2/3 of the tongue?

Answer 24

chorda tympani (CN VII)

Question 25

What nerve does general and special sense for the posterior 1/3 of tongue?

Answer 25

glossopharyngeal nerve (CN IX)

Question 26

What nerve does sensory for a tiny portion at the back of the tongue?

Answer 26

internal laryngeal nerve (CN X)

Question 27

What is the action of the superior longitudinal muscle of the tongue?

Answer 27

curls tongue upward
retrudes tongue

Question 28

What is the action of the inferior longitudinal muscle of the tongue?

Answer 28

cursl tongue downward
retrudes tongue

Question 29

What is the action of the transverse muscle of the tongue?

Answer 29

narrows and elongates tongue

Question 30

What is the action of the vertical muscle of the tongue?

Answer 30

flattens and broadens tongue

Question 31

What is the action of the genioglossus muscle of the tongue?

Answer 31

depresses tongue
pulls tongue anterior for protrusion
forms a central furrow

Question 32

What is the action of the hyoglossus muscle of the tongue?

Answer 32

depresses tongue
retrudes tongue

Question 33

What is the action of the styloglossus muscle of the tongue?

Answer 33

retrudes tongue
forms a central furrow

Question 34

What is the action of the palatoglossus muscle of the tongue?

Answer 34

elevating posterior tongue
depresses soft palate