Nerves to muscles

Question 1

Olfactory nerve

Answer 1

only special sensory (afferent)

Question 2

Optic nerve

Answer 2

only special sensory (afferent)

Question 3

Oculomotor nerve

Answer 3

1. general somatic efferent- 4/6 of extraocular muscles (levator palpebrae superioris, superior rectus, inferior rectus, inferior oblique)
2. general visceral efferent- parasympathetic innervation of constrictor palpibrae and ciliary muscles.

Question 4

Trochlear nerve

Answer 4

GSE: superior oblique muscle of eye

Question 5

Trigeminal

Answer 5

Sensory: opthalmic, maxillary, mandibular

GSE: mastication: masseter, temporal, medial/lateral pterygoid

Other: veli palatini, mylohyoid, ant. belly of digastric, tensor tympani

Question 6

Abducens

Answer 6

GSE: innervates lateral rectus

Question 7

Facial

Answer 7

SVE: muscles of facial expression, post. belly of digastric, stylohyoid and stapedius

GVE: para innerv to lacrimal, submandibular and sublingual glands

Special Afferent: taste from anterior 2/3 of tongue

General Sensory: skin sensation around concha and a little bit behind ear

Question 8

Vestibulocochlear

Answer 8

Afferent Sensory: hair cells of ear, cochlear for hearing, trochlear for balance

Question 9

Glossopharyngeal

Answer 9

SVE: stylopharyngeus

GVE: parasymp innerv to smooth muscles and glands of pharynx and larynx

GVA: sensory from carotid sinus and body

GSA: skin of ext. ear, tympanic membrane, upper pharynx and posterior 1/3 of tongue

Special Sensory: posterior 1/3 of tongue

Question 10

Vagus

Answer 10

SVE: voluntary muscles of pharynx, most of larynx and 1 extrinsic tongue muscle

GVE: parasymp innerv. from smooth muscle of glands of pharynx and larynx

GVA: visceral sensory from larynx, esophagus and trachea

GSA: sensory from back of eart, ext. auditory meatus and pharynx

Question 11

Accessory

Answer 11

SVE: sternocleidomastoid and trapezius

Question 12

hypoglossal

Answer 12

GSE: extrinsic tongue muscles

Question 13

levator labii superioris alaeque nasi

Answer 13

Buccal branch of facial nerve

Question 14

orbicularis oculi

Answer 14

temporal and zygomatic nerves

Question 15

levator labii superioris

Answer 15

zygomatic nerve

Question 16

zygomaticus major

Answer 16

zygomatic and buccal nerves

Question 17

zygomaticus minor

Answer 17

buccal nerve

Question 18

levator anguli oris

Answer 18

buccal nerve

Question 19

depressor anguli oris

Answer 19

mandibular nerve

Question 20

depressor labi inferioris

Answer 20

mandibular nerve

Question 21

mentalis

Answer 21

mandibular nerve

Question 22

platysma

Answer 22

cervical nerve

Question 23

masseter

Answer 23

mandibular nerve

Question 24

buccinator

Answer 24

buccal nerve

Question 25

digastric muscle

Answer 25

anterior: nerve to mylohyoid
posterior: facial nerve

Question 26

What nerve lays on top of the anterior scalene?

Answer 26

phrenic

Question 27

What are two nerves that branch off of the Upper Trunk of the Brachial Plexus?

Answer 27

1. subclavius

2. suprascapular

Question 28

What innervates the vocal chords?

Answer 28

recurrent laryngeal nerve

Question 29

What does the facial nerve come out of?

Answer 29

The stylomastoid foramen.

Question 30

What innervates the geniohyoid?

Answer 30

ventral rami of C1

Question 31

What innervates the epiglottis?

Answer 31

internal laryngeal nerve

Question 32

How does the hypoglossal nerve exit the cranial cavity?

Answer 32

Hypoglossal canal.

Question 33

What is the function of the superior rectus muscle?

Answer 33

elevate, adducts and intorts eyeball

Question 34

What passes through the greater palatine foramen?

Answer 34

Greater palatine VAN.