Nerve Innervation

Question 1

hard palate

Answer 1

sensory innervation is the maxillary branch of the CN V (trigeminal); static, doesn’t move

Question 2

soft palate

Answer 2

sensory innervation of maxillary nerve of the CN V (trigeminal)

Question 3

nasopharynx

Answer 3

sensory innervation through CN IX (glossopharyngeal)

Question 4

oropharynx

Answer 4

sensory innervation through pharyngeal plexus

Question 5

laryngopharynx

Answer 5

sensory innervation through pharyngeal plexus

Question 6

superior pharyngeal constrictor

Answer 6

motor innervation through the pharyngeal plexus

Question 7

middle pharyngeal constrictor

Answer 7

motor innervation through the pharyngeal plexus

Question 8

inferior pharyngeal constrictor

Answer 8

motor innervation through the pharyngeal plexus

Question 9

stylopharyngeus*

Answer 9

the only one of the three longitudinal pharyngeal muscles whose motor innervation is through the CN IX (glossopharyngeal) NOT the pharyngeal plexus

Question 10

palatopharyngeus

Answer 10

motor innervation through the pharyngeal plexus

Question 11

salpingopharyngeus

Answer 11

motor innervation through the pharyngeal plexus

Question 12

musculus uvulae

Answer 12

motor innervation through pharyngeal plexus

Question 13

levator veli palatini

Answer 13

motor innervation through pharyngeal plexus

Question 14

tensor veli palatini

Answer 14

motor innervation through mandibular nerve of the CN V (trigeminal)

Question 15

palatoglossus

Answer 15

motor innervation through the pharyngeal plexus

Question 16

anterior 2/3 of the tongue

Answer 16

general sensory innervation: CN V (trigeminal); special sensory information: CN VII (facial)

Question 17

posterior 1/3 of the tongue

Answer 17

general sensory innervation: CN IX (glossopharyngeal); special sensory innervation: CN IX (glossopharyngeal)

Question 18

hyoglossus

Answer 18

motor innervation through CN XII (hypoglossal)

Question 19

anterior belly digastric

Answer 19

motor innervation through CN V (trigeminal)

Question 20

mylohyoid

Answer 20

motor innervation through CN V (trigeminal)

Question 21

geniohyoid

Answer 21

motor innervation through C1 and C2 through CN IX (glossopharyngeal)

Question 22

posterior belly of the digastric

Answer 22

motor innervation through CN VII (facial)

Question 23

stylohyoid

Answer 23

motor innervation through CN VII (facial)

Question 24

thyrohyoid

Answer 24

motor innervation SN C1 from cervical plexus

Question 25

sternohyoid

Answer 25

motor innervation SNs C1-3 from cervical plexus

Question 26

sternothyroid

Answer 26

motor innervation SNs C1-3 from cervical plexus

Question 27

omohyoid

Answer 27

motor innervation SNs C1-3 from cervical plexus

Question 28

larynx: vocal folds and higher

Answer 28

sensory innervation by internal branch of the superior laryngeal nerve of CN X (vagus)

Question 29

larynx: below vocal folds

Answer 29

sensory innervation by recurrent laryngeal nerve of CN X (vagus)

Question 30

cricothyroid muscle

Answer 30

motor innervation by the external superior laryngeal nerve (ESLN) of the CN X (vagus)

Question 31

thyroarytenoid muscle

Answer 31

motor innervation by the recurrent laryngeal nerve (RLN) of CN X (vagus)

Question 32

lateral cricoarytenoid muscle

Answer 32

motor innervation by the recurrent laryngeal nerve (RLN) of CN X (vagus)

Question 33

transverse interarytenoid muscle

Answer 33

motor innervation by the recurrent laryngeal nerve (RLN) of CN X (vagus)

Question 34

oblique interarytenoid muscle

Answer 34

motor innervation by the recurrent laryngeal nerve (RLN) of CN X (vagus)

Question 35

posterior cricoarytenoid muscle

Answer 35

motor innervation by the recurrent laryngeal nerve (RLN) of CN X (vagus)

Question 36

aryepiglottic muscle

Answer 36

motor innervation by the recurrent laryngeal nerve (RLN) of CN X (vagus)

Question 37

thyroepiglottis

Answer 37

motor innervation by the recurrent laryngeal nerve (RLN) of CN X (vagus)