Unit 3: brachial plexus

Question 0

Name the nerves that receives the gray rami communicans from the middle cervical ganglion of the sympathetic trunk

Answer 0

C5 and C6

Question 1

name two nerves that form the inferior trunk of the brachial plexus

Answer 1

C8 and T1

Question 2

The eighth cervical ventral ramus contributes the white ramus communicans to the cervicothoracic ganglion T/F

Answer 2

False, don’t carry sympathetic

Question 3

the supraclavicular branches are from the roots and trunks of the brachial plexus T/F

Answer 3

false, cervical plexus does

Question 4

The longus collies are innervated by ___

Answer 4

C2-C8

Question 5

The nerve to the phrenic nerve from the fifth cervical ventral ramus joins the phrenic nerve at the front of the ___ muscle

Answer 5

scalenus anterior/ anterior scalene

Question 6

The suprascapular nerve arises from the ___ of the brachial plexus

Answer 6

superior trunk

Question 7

the suprascapular nerve enters the supraspinous fossa through the scapular notch above the superior transverse scapular ligament T/F

Answer 7

false, inferior

Question 8

the lateral cord of the brachial plexus is formed by ___ division of ___

Answer 8

anterior division of upper and middle trunks of C5-C7

Question 9

draw the brachial plexus including the roots, trunks, division, cords, and brachial branches

Answer 9

DRAW

Question 10

name the nerve which distributes the deep medial surface fo the pectoralis major

Answer 10

lateral pectoral nerve of lateral cord

Question 11

the upper subscapular nerve is from the ___ cord with ___ roots

Answer 11

posterior cord with C5 and C6

Question 12

Name the nerve which innervates the teres major

Answer 12

lower subscapular nerve of posterior cord

Question 13

Name he border of the quadrangular space through where the axillary nerve passes
superiorly
inferiorly
medially
laterally

Answer 13

superiorly: subscapularis and teres minor
inferiorly: teres major
medially: long head of the triceps brachii
laterally: surgical neck of the humerus

Question 14

name the nerve which gives off the upper lateral cutaneous nerve of the arm

Answer 14

posterior branch of axillary N

Question 15

name the nerve which pierces the coracobrachialis

Answer 15

musculocutaneous nerve of lateral cord

Question 16

The lateral cutaneous nerve of the forearm is continuation of ___ nerve

Answer 16

musculocutaneous

Question 17

Name the nerve which supplies the skin over the half of the anterior surface of the forearm

Answer 17

lateral cutaneous nerve of forearm of musculocutaneous N

Question 18

The intercostobrachial nerve communicates with ___ on the arm

Answer 18

medial cutaneous nerve of the arm

Question 19

Name the nerve whichi arises from two cords of the brachial plexus

Answer 19

median nerve. (lateral cord C5-C7 and medial cord C8-T1)

Question 20

Name the nerve which locates between two tendons of the flexor digitorum superficialis and the flexor carpi radialis at the proximal to the flexor retinaculum

Answer 20

median nerve

Question 21

Name the nerves which innervates the flexor pollicis longus ____ of ____

Answer 21

anterior interosseous nerve of the median nerve

Question 22

Name the nerves which give off he articular nerve to the elbow joint

Answer 22

median N, musculocutaneous N, radial N, and ulnar N

Question 23

The proximal radio-ulnar joint is innervated by ___ nerve

Answer 23

median N

Question 24

Name the nerve which innervates the lateral three and one half digits of the palmer surface

Answer 24

palmer cutaneous branch of median N

Question 25

The ulnar nerve arises from ___ cord with ___ roots

Answer 25

medial cord (C7, C8, and T1)

Question 26

Name the nerve which lies in a groove on the dorsum of the medial epicondyle

Answer 26

Ulnar N

Question 27

The ulnar nerve lays MEDIAL/LATERAL side of the ulnar vessels at the proximal end of the flexor retinaculum

Answer 27

medial

Question 28

Name the nerve which innervates the palmeris brevis. ____ of ____

Answer 28

palmer cutaneous branch of the ulnar nerve

Question 29

Name the nerve which supplies the adductor pollicis ___ of ___

Answer 29

deep terminal branch of the ulnar N

Question 30

The deep terminal branch of the ulnar nerve supplies following muscles EXCEPT:
A. abductor digiti minimi
B. opponent digiti minimi
C. adductor pollicis 
D. opponents pollicis

Answer 30

D. Opponent pollicis

Question 31

The radial nerve arises from the ___ cord/cords with ___ roots

Answer 31

posterior cord with C5-T1

Question 32

The muscular branches of the radial nerve innervates following muscles, EXCEPT:
A. long head of the biceps brachii
B. medial head of the triceps brachii
C. anconeus
D. extensor carpi radialis brevis

Answer 32

A. long head of the biceps brachii

Question 33

The posterior interosseous nerve innervates following muscles, EXCEPT
A. extensor digitorum
B. extensor carpi ularis
C. abductor pollicis brevis
D. extensor indicus

Answer 33

C. abductor pollicis brevis

Question 34

clutch paralysis can be caused by the injury of ____ nerve/nerves

Answer 34

radial and or ulnar

Question 35

winging the scapular is caused by the paralysis of the ___ nerve of ___

Answer 35

long thoracic N of C5-C7

Question 36

Name three nerves which arise from the posterior division of the upper trunk of the brachial plexus

Answer 36

upper subscapular N
lower subscapular N
axillary N