Brachial Plexus

Question 0

Name the nerves that receive the gray ramus communicantes from the middle cervical ganglion of the sympathetic trunk.

Answer 0

C5 and C6.

Question 1

Name the 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 communicantes to the cervicothoracic ganglion. True/False.

Answer 2

False. T1 contributes the white ramus.

Question 3

The supraclavicular branches are from the roots and trunks of the brachial plexus. True/False.

Answer 3

True.

Question 4

The longus collies are innervated by ___.

Answer 4

C5-C8 with C2-C4.

Question 5

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

Answer 5

Scalenus Anterior.

Question 6

The suprascapular nerve arises from ___ of the brachial plexus.

Answer 6

Superior trunk.

Question 7

The suprascapular nerve enters the supraspinous fossa thru the scapular notch above the superior transverse scapular ligament. True/False.

Answer 7

False. Inferior to ligament.

Question 8

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

Answer 8

Anterior division of the superior and middle trunks.

Question 9

Name the nerve which distributes to the deep medial surface of the pectoralis major.

Answer 9

Lateral pectoral nerve.

Question 10

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

Answer 10

Posterior, C5 and C6.

Question 11

Name the nerve that innervates the teres major.

Answer 11

Lower subscapular nerve.

Question 12

Name the border of the quadrangular space thru where the axillary nerve passes.

Answer 12

Superior: Subscapularis, Teres Minor
Inferior: Teres Major
Medial: Long head of the Triceps
Lateral: Surgical neck of the humerus.

Question 13

Name the nerve which gives off the upper lateral cutaneous nerve of the arm.

Answer 13

Axillary nerve.

Question 14

Name the nerve which pierces the coracobrachialis.

Answer 14

Musculocutaneous nerve.

Question 15

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

Answer 15

Musculocutaneous nerve.

Question 16

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

Answer 16

Lateral cutaneous nerve of the forearm of the Musculocutaneous nerve.

Question 17

The intercostobrachial nerve communicates with ___ on the arm.

Answer 17

Medial cutaneous nerve of the arm.

Question 18

Name the nerve which is located between the two tendons of the flexor digitorum superficialis and the flexor carpi radialis, proximal to the flexor retinaculum.

Answer 18

Median nerve.

Question 19

Name the nerve which arises from two cords of the brachial plexus.

Answer 19

Median nerve.

Question 20

Name the nerve which innervates the flexor pollicis longus. ___ of ___.

Answer 20

Anterior interosseous nerve of median nerve.

Question 21

Name the nerve which gives of the articular nerve to the elbow joint.

Answer 21

Median nerve.

Question 22

The proximal radio ulnar joint is innervated by ___.

Answer 22

Articular branch of median nerve.

Question 23

Name the nerve that innervates the lateral three and one half digits on the palmer surface.

Answer 23

Palmer cutaneous digital nerve branches of the median nerve.

Question 24

The ulnar nerve arises from the ___ cord with ___ roots.

Answer 24

Medial, (C7) C8, T1.

Question 25

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

Answer 25

Upper/Lower Subscapular and Axillary.

Question 26

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

Answer 26

Ulnar nerve.

Question 27

The ulnar nerve lays on the medial/lateral side of the ulnar vessels at the proximal end of the flexor retinaculum.

Answer 27

Medial.

Question 28

Name the nerve that innervates the palmar brevis.

Answer 28

Palmar cutaneous branch of Ulnar nerve.

Question 29

Name the nerve which supplies the adductor pollicis.

Answer 29

Deep terminal branches of Ulnar nerve.

Question 30

The radial nerve arises from the ___ cord with ___ roots.

Answer 30

Posterior cords with C5-C8, (T1) roots.