unit 5: brachial plexus, medial cord

Question 0

Branch off the medial cord containing fibers from C8 & T1 with only muscle supply

Answer 0

medial pectoral nerve

Question 1

The medial cord is formed by the ___ division of the inferior trunk

Answer 1

anterior

Question 2

Two muscles supplied by medial pectoral nerve

Answer 2

pectoralis major

pectoralis minor

Question 3

Nerve branch containing fibers from C8 & T1 that ramifies in the axilla & supplies SKIN of medial arm by axilla and elbow

Answer 3

medial cutaneous nerve of the arm

Question 4

Medial cutaneous nerve of the arm receives some fibers from T2 thru s communication with the _____ nerve

Answer 4

intercostobrachial

Question 5

Nerve branch containing fibers from C8 & T1 that leaves medial cord just distal to medial cutaneous nerve of the arm (picks up where it leaves off)

Answer 5

Medial cutaneous nerve of the FOREARM

Question 6

The medial cutaneous nerve of the forearm supplies skin over the

Answer 6

biceps brachii

anterior & medial forearm distal to wrist

Question 7

One of two terminal branches, contains fibers from c8, t1 & sometime c7 and gives off NO branches in the arm

Answer 7

ulnar nerve

Question 8

The ulnar nerve travels medial to the ____ artery in the medial bicipital sulcus

Answer 8

brachial

Question 9

The ulnar nerve crosses elbow on the posterior side of the ___ ___ in the sulcus for the ulnar nerve, where it is palpable

Answer 9

medial epicondyle

Question 10

Two muscles of the forearm that are supplied by the ulnar nerve

Answer 10

flexor carpi ulnaris

flexor digitorum profundus (medial half)

Question 11

The ___ branch of the ulnar n. supplies skin on the ulnar side of posterior hand, while the ____ branch supplies skin over hypothenar eminence

Answer 11

dorsal

palmar

Question 12

Ulnar n. travels deep to ____ ____ ____ to wrist, superficial to ___ ____ and divides into superficial and deep branches

Answer 12

flexor carpi ulnaris

flexor retinaculum

Question 14

The ____ branch of the ulnar nerve divides into three terminal branches that supply palmar aspect of little finger and medial half of ring finger

Answer 14

superficial

Question 15

the \_\_\_ branch of the ulnar nerve curves toward the thenar eminence and gives off branches supplying:
abductor digiti minimi
flexor digiti minimi brevis
opponenes digiti minimi
adductor pollicis
deep head of flexor pollicis brevis
all interossei
lumbricals 3 & 4

Answer 15

deep

Question 16

nerve w/ contributions from both lateral & median cord, and contains fibers from C6-T1 but gives off no branches in the arm

Answer 16

median nerve

Question 17

the median nerve travels in the medial bicipital sulcus, crosses the elbow _____, and enters forearm after passing bt ___ ___’s two heads

Answer 17

anteriorly

pronator teres

Question 18

five forearm muscles that are innervated by the MEDIAN nerve

Answer 18

pronator teres
flexor carbi radialis
palmaris longus
flexor digitorum superficialis
pronator quadratus

Question 19

nerve given off the median nerve in the elbow, that allows pronator quadratus to be innervated

Answer 19

anterior interosseous

Question 20

the PALMAR branch of the median nerve is given off in the distal third of the forearm and supplies the SKIN of the (3):

Answer 20

thenar eminence
lateral wrist
palm (part not supplied by ulnar)

Question 21

the median nerve passes thru the carpal tunnel and divides into three:

Answer 21

common palmar digital nerves

Question 22

the three common palmar digital nerves supply the first to lumbrical muscles, and branches of the FIRST supply these three muscles

Answer 22

abductor pollicis brevis
flexor pollicis brevis
opponens pollicis

Question 23

each common palmar digital nerve splits into TWO ___ ____ ___ nerves, which have only sensory function over the skin over the lateral 3.5 digits

Answer 23

proper palmar digital

Question 24

non-muscular innervations of the median nerve

Answer 24

periosteum
elbow, radiocarpal, midcarpal joints
communication w/ ulnar @ wrist