Neck, Back, and Upper Extremity Innervation

Question 1

trapezius

Answer 1

CN11

Question 2

latissimus dorsi

Answer 2

thoracodorsal nerve (a branch of the posterior cord of the brachial plexus)

Question 3

rhomboids

Answer 3

dorsal scapular nerve

Question 4

levator scapulae

Answer 4

dorsal scapular nerve and the anterior rami of C3 and C4

Question 5

splenius

Answer 5

posterior rami of C3 and C4

Question 6

erector spinae

Answer 6

dorsal rami

Question 7

type of nerves in the dorsal roots?

Answer 7

sensory

(this is pre-spinal nerve; rami contain both)

Question 8

type of nerves in the dorsal ramps of the spinal nerves?

Answer 8

both motor and sensory

Question 9

what is in dorsal root ganglia

Answer 9

cell bodies of neurons

Question 10

4 cutaneous branches of the cervical plexus

Answer 10

.

Question 11

which ventral rami form cervical plexus

Answer 11

C1-C4

Question 12

what is between middle and anterior scalene

Answer 12

trunks of the brachial plexus

Question 13

what muscles are innervated by CN 11?

Answer 13

sternocleidomastoid and trapezius

Question 14

phrenic nerve: target, ventral rami that form it, and location (on which muscle?)

Answer 14

Diaphragm
C3-C5
Anterior scalene

Question 15

biceps brachii

Answer 15

musculocutaneous nerve (the most lateral of the terminal branches of the brachial plexus)

Question 16

corachobrachialis

Answer 16

musculocutaneous nerve (the most lateral of the terminal branches of the brachial plexus)

Question 17

what does long thoracic nerve supply, and which surgical procedure can injure it?

Answer 17

serratous anterior
mastectomy

Question 18

where do we see trunks of brachial plexus?

Answer 18

posterior triangle of neck, between the anterior and middle scalenes

Question 19

where do we see cords of the brachial plexus?

Answer 19

anterior, medial, and posterior
high in axilla, before “M”

Question 20

where do we see terminal branches of the brachial plexus?

Answer 20

the “M” of the axilla

Question 21

lateral to medial: the terminal branches of the brachial plexus

Answer 21

musculocutaneous
axillary (sort of behind the M)
median
radial (sort of behind the M)
ulnar

Question 22

muscles innervated by musculocutaneous nerve

Answer 22

anterior brachium (biceps brachii, brachialis, corachobrachialis)

Question 23

cutaneous regions innervated by musculocutaneous nerve

Answer 23

anterior brachium

Question 24

muscles innervated by axillary nerve

Answer 24

deltoid, teres minor

Question 25

cutaneous regions innervated by axillary nerve

Answer 25

skin over shoulder

Question 26

muscles innervated by median nerve

Answer 26

.

Question 27

cutaneous regions innervated by median nerve

Answer 27

digits 2 and 3 (carpal tunnel) ...

Question 28

muscles innervated by ulnar nerve

Answer 28

lateral forearm?

Question 29

cutaneous regions innervated by ulnar nerve

Answer 29

.

Question 30

muscles innervated by radial nerve

Answer 30

anterior forearm (flexor compartment)

Question 31

cutaneous regions innervated by radial nerve

Answer 31

anterior forearm, digits 1 and 2?

Question 32

long thoracic nerve

Answer 32

anterior serratous

Question 33

thoracodorsal

Answer 33

latissimus dorsi ...

Question 34

suprascapular

Answer 34

scapular ...

Question 35

muscles of the face (innervation)

Answer 35

CN 7

Question 36

branches of CN 7

Answer 36

supraorbital infraorbital mental lesser occipital greater occipital ?

Question 37

supraorbital, infraorbital, and mental nerves are branches of...

Answer 37

trigeminal

Question 38

pec major innervation

Answer 38

median and lateral pectoral nerves

Question 39

deltoid innervation

Answer 39

axillary nerve

Question 40

supraspinatous innervation

Answer 40

suprascapular nerve C5 and C6

Question 41

which ventral rami form axillary nerve

Answer 41

C5 and C6

Question 42

biceps brachii innervation

Answer 42

musculocutaneous

Question 43

brachialis innervation

Answer 43

musculocutaneous radial

Question 44

coracobrachialis innervation

Answer 44

musculocutaneous

Question 45

musculocutaneous nerve ventral rami

Answer 45

C5, C6, C7

Question 46

radial nerve ventral rami

Answer 46

C5 through T1

Question 47

cutaneous innervation medial aspect of upper arm

Answer 47

medial brachial cutaneous nerve

Question 48

cutaneous innervation upper shoulder and neck

Answer 48

suprascapular

Question 49

cutaneous innervation shoulder

Answer 49

axillary

Question 50

cutaneous innervation posterior upper arm

Answer 50

radial (same as posterior forearm)

Question 51

cutaneous innervation posterior forearm

Answer 51

radial (same as posterior brachium)

Question 52

cutaneous innervation anterior upper arm

Answer 52

medial antebrachial cutaneous (same as anterior forearm)

Question 53

cutaneous innervation anterior forearm

Answer 53

medial antebrachial cutaneous (same as anterior upper arm)

Question 54

cutaneous innervation lateral forearm

Answer 54

lateral antebrachial cutaneous nerve which is a continuation of musculocutaneous nerve

Question 55

location of ulnar nerve cubital fossa

Answer 55

b/w olecranon and medial epicondyle

Question 56

flexor carpi radialis innervation

Answer 56

median nerve

Question 57

flexor carpi ulnaris innervation

Answer 57

ulnar nerve

Question 58

pronator teres innervation

Answer 58

median nerve

Question 59

flexor digitorum superficialis innervation

Answer 59

median nerve

Question 60

flexor digitorum profundus innervation

Answer 60

median AND ulnar nerves

Question 61

flexor pollicis longus innervation

Answer 61

median nerve

Question 62

pronator quadratus innervation

Answer 62

median nerve

Question 63

median nerve innervates...

Answer 63

muscles of anterior forearm: pronator teres flexor carpi radialis palmaris longus flexor carpi ulnaris flexor digitorum superficialis flexor digitorum profundus flexor pollicis longus pronator quadratus

Question 64

Answer 64