Neck

Question 1

Geniohyoid innervation

Answer 1

C1 ventral ramus via CN XII

Question 2

geniohyoid function

Answer 2

Pulls hyoid anteriorly, shortens floor of mouth, widens pharynx

Question 3

stylohyoid innervation

Answer 3

CN VII

Question 4

stylohyoid function

Answer 4

Elevates/retracts hyoid, elongates floor of mouth

Question 5

digastric innervation

Answer 5

Posterior belly: CN VII; Anterior belly: Inferior alveolar nerve

Question 6

digastric function

Answer 6

Elevates hyoid during swallowing/speaking, can also depress mandible

Question 7

mylohyoid innervation

Answer 7

Inferior alveolar nerve

Question 8

mylohyoid function

Answer 8

Elevates hyoid, tongue, floor of mouth during swallowing/speech

Question 9

hyoglossus innervation

Answer 9

CNXII

Question 10

hyoglossus function

Answer 10

depresses tongue

Question 11

sternohyoid, omohyoid and sternothyroid innervation

Answer 11

Ventral rami from C1-C3 via ansa cervicalis

Question 12

thyrohyoid innervation

Answer 12

C1 ventral ramus via CN XII

Question 13

sternohyoid, omohyoid, sternothyroid and thyrohyoid function

Answer 13

Depresses hyoid after elevation from swallowing

Question 14

blood supply/innervation of submandibular salivary gland

Answer 14

Blood: Lingual artery

Innervation: CN V3 (sensory), Chorda tympani from CN VII via lingual nerve (parasympathetic motor)

Question 15

what kind of nerve is superior laryngeal

Answer 15

ALL- somatic, visceral (sensory), somatic and parasympathetic motor

Question 16

what is the source of superior laryngeal nerve

Answer 16

CN X

Question 17

what does superior laryngeal nerve innervate

Answer 17

Provides somatic sensory innervation to upper larynx, somatic motor control of cricothyroid muscle (for speech). Provides parasympathetic and visceral sensory innervation to trachea and esophagus in neck, mucous glands in larynx

Question 18

where does superior laryngeal nerve supply

Answer 18

Superior larynx

Question 19

what kind of nerve is inferior laryngeal nerve

Answer 19

Sensory: somatic and visceral

Motor: somatic, parasympathetic

Question 20

where does inferior laryngeal nerve come off of

Answer 20

recurrent laryngeal branch of CN X

Question 21

where does inferior laryngeal nerve supply

Answer 21

inferior larynx

Question 22

what does inferior laryngeal nerve innervate

Answer 22

Provides somatic sensory innervation to lower larynx, somatic motor control of laryngeal muscles (for speech)

Provides parasympathetic and visceral sensory innervation to trachea and esophagus in neck, mucous glands in larynx

Question 23

what does the inferior laryngeal nerve look between

Answer 23

Loops up from thorax between the trachea and esophagus, continuation of recurrent branch of the vagus

Question 24

what kind of nerve is ansa cervicalis

Answer 24

Motor-somatic

Question 25

where does ansa cervicalis come from

Answer 25

C1- C3

Question 26

where can ansa cervicalis be seen

Answer 26

Motor branches of cervical plexus-forms a “loop” up and down the neck anterior to sternocleidomastoid, one end of loop attached to hypoglossal, the other end to a descending limb from C2/C3