Nerves of Upper Limb

Question 1

which nerve pierces the coracobrachialis?

Answer 1

musculocutaneous

Question 2

which nerves contribute to Ulnar Nerve?

Answer 2

(C7), C8, T1

Question 3

What is pre-fixed/post-fixed brachial plexus?

Answer 3

pre-fixed: C4-C8

post-fixed: C6-T2

Question 4

Are the divisions of brachial plexus infra or supreclavicular?

Answer 4

infraclavicular

Question 5

Musculocutaneous nerve which nerve roots?

Answer 5

C5,6,7

Question 6

Musculocutaneous nerve innervated?

Answer 6

biceps
brachialis
coracobrachialis

Question 7

what happens to Musculocutaneous nerve at elbow?

Answer 7

becomes superficial

turns into lateral cutaneous nerve of forearm

Question 8

ulnar travels where near elbow? and through what into forearm

Answer 8

behind the medial epicondyle, through the 2 heads of flexor carpi ulnaris

Question 9

ulnar nerve important for what muscles?

Answer 9

everything in the hand except what the median nerve supplies

Question 10

ulnar nerve supplies what in forearm?

Answer 10

FCU

FDP

Question 11

ulnar nerve is where in wrist?

Answer 11

superficial near pisiform bone

Question 12

what nerve roots make up median nerve?

Answer 12

C5,6,7,8 T1

Question 13

course of median nerve in arm?

Answer 13

lateral at first, then crosses brachial artery medially to elbow

Question 14

what is the order of structures in cubital fossa?

Answer 14

BAN
Biceps tendon
Artery (brachial)
Nerve (median)

Question 15

median nerve supplies 4/5 forearm flexors and 3 deep. They are?

Answer 15

pronator teres
Palmaris longus
flexor carpi radialis
flexor digitorum superficialis

lateral FCP
Pronator Quadratus

Question 16

median nerve passes through what in forearm?

Answer 16

fibrous arch of FDS

Question 17

what hand muscles by median nerve?

Answer 17

5 muscles:
3 thenar: APB, FPB, OP
lateral 2 lumbricals

Question 18

What nerves are around Teres major?

Answer 18

Axillary nerve above

Radial nerve below

Question 19

What runs between teres major and minor?

Answer 19

axillary nerve

Question 20

what is above/behind the axillary nerve? so what?

Answer 20

G-H joint. dislocation injury

Question 21

axillary nerve supplies what?

Answer 21

deltoid (C5,6)

Question 22

radial nerve course in arm?

Answer 22

lateral diagonally across shaft of humerus, tucks into cover of brachioradialis

Question 23

radial nerve splits into what at elbow?

Answer 23

superficial (cutaneous only)

deep (through supinator, all motor)

Question 24

Deep branch of radial nerve AKA?

Answer 24

posterior interosseus nerve

Question 25

posterior interosseus nerve AKA?

Answer 25

Deep branch of radial nerve

Question 26

radial nerve in wrist is where?

Answer 26

over the roof of anatomical snuff box

Question 27

cutaneous innervation of deltoid, mid arm, medial/lateral forearm are?

Answer 27

ARM
Axillary
Radial
musculocutaneous