Brachial Plexus

Question 0

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

Answer 0

Anterior divisions of upper and middle trunk

Question 1

Name two nerves that form the inferior trunk of the brachial plexus.

Answer 1

C8,T1

Question 2

Name the nerves that receive the gray rami communicans from the middle cervical ganglion of thesympathetic trunk.

Answer 2

C5, C6

Question 3

The eighth cervical ventral ramus contributes the white ramus communicantes to the cervicothoracic (stellate) ganglion. True/False

Answer 3

True

Question 4

Name the spinal nerve, which sends the white ramus communicans to the stellate ganglion.

Answer 4

T1

Question 5

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

Answer 5

True

Question 6

The longus collies are innervated by ____________.

Answer 6

C5-C8

Question 7

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

Answer 7

Anterior scalene muscle

Question 8

The suprascapular nerve arises from ________ of the brachial plexus.

Answer 8

Upper/superior trunk

Question 9

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

Answer 9

False

Question 10

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

Answer 10

Lateral pectoral nerve

Question 11

Name the muscle(s), which is or are innervated by the medial pectoral nerve.

Answer 11

Pectoralis major & minor

Question 12

The upper subscapular nerve is from the ______ cord with _______ roots.

Answer 12

Posterior cord with C5-C6 roots

Question 13

Name the nerve, which innervates the latissimus dorsi. ______ of ______

Answer 13

Thoracodorsal nerve of posterior cord (C6-C8)

Question 14

Name the nerve which innervates the teres major.

Answer 14

Lower subscapular n. of posterior cord, C5, C6

Question 15

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

Answer 15

Posterior branch of axillary nerve.

Question 16

Name the nerve which pierces the coracobrachialis.

Answer 16

Musculocutaneous nerve

Question 17

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

Answer 17

Musculocutaneous nerve

Question 18

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

Answer 18

Lateral cutaneous nerve of the forearm.

Question 19

The intercostobrachial nerve communicates with _____________ on the arm.

Answer 19

Medial cutaneous nerve of the arm

Question 20

Name the nerve which arises from medial and lateral cords of the brachial plexus.

Answer 20

Median nerve

Question 21

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

Answer 21

Median nerve

Question 22

Name the nerve which innervates the flexor pollicis longus. ___________ of ____________

Answer 22

Anterior Interosseous nerve of the median nerve

Question 23

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

Answer 23

Median nerve, radial nerve, ulnar nerve, musculocutaneous nerve.

Question 24

The proximal radio-ulnar joint is innervated by ______________ nerve.

Answer 24

Articular branches of median nerve.

Question 25

Name the muscles, which are innervated by the median nerve in the hand (3).

Answer 25

(1) for the flexor pollicis brevis,
(2) for the abductor pollicis brevis,
(3) for the opponens pollicis.

Question 26

Name the nerve, which innervates the first lumbrical.

Answer 26

Palmer digital branches of median nerve.

Question 27

The ulnar nerve arises from _____ cord with _________ roots.

Answer 27

Medial cord with C7-T1 roots

Question 28

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

Answer 28

Ulnar nerve

Question 29

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

Answer 29

Medial

Question 30

Name the nerve which innervates the palmaris brevis. ___________ of ____________

Answer 30

Superficial terminal branch of ulnar nerve

Question 31

Name the nerve which supplies the adductor pollicis. __________ of ______________

Answer 31

Deep terminal branch of ulnar nerve

Question 32

The deep terminal branch of the ulnar nerve supplies following muscles, EXCEPT

a. abductor digiti minimi
c. adductor pollicis
b. opponens digiti minimi
d. opponens pollicis

Answer 32

opponens pollicis

Question 33

The radial nerve arises from the _____ cord/cords with ___________ roots.

Answer 33

Posterior cord with C5-T1 roots

Question 34

The muscular branches of the radial nerve innervates following muscles, EXCEPT

a. long head of the biceps brachii
c. anconeus
b. medial head of the triceps brachii
d. extensor carpi radialis brev

Answer 34

a. long head of the biceps brachii

Question 35

The posterior interosseous nerve innervates following muscles, EXCEPT

a. extensor digitorum
c. abductor pollicis brevis
b. extensor carpi ulnaris
d. extensor indicus

Answer 35

c. abductor pollicis brevis

Question 36

Erb’s paralysis can be caused by the injury of ______ or ______.

Answer 36

Upper trunk or C5,C6

Question 37

Clutch paralysis can be caused by the injury of ____________ nerve/nerves.

Answer 37

Radial and/or ulnar nerve(s)

Question 38

Winging the scapular is caused by the paralysis of the ___________ nerve of __________.

Answer 38

Long thoracic nerve of C5-C7 roots

Question 39

Name the injured nerve, which might cause the wrist drop.

Answer 39

Ulnar nerve