Brachial Plexus

Question 0

Whats the innervatino for the dorsal scapular nerve?

Answer 0

Rhomboids occassionally supplies the levator scap

Question 1

Whats the origin of the dorsal scapula?

Answer 1

Posterior aspect of c5 with frequent contribution from c4

Question 2

Long thoracic origin

Answer 2

Posterior aspect of anterior rami of c5,c6,c7

Question 3

What structures are innervated by the long thoracic nerve?

Answer 3

Serratus anterior

Question 4

Whats the origin of the suprascapular nerve?

Answer 4

C5, c6 and often c4

Question 5

Whats the innervation of the suprascapular nerve?

Answer 5

Supraspinatous and infraspinatous muscles; glenohumeral (shoulder) joint

Question 6

Whats the origin for the subclavian nerve?

Answer 6

Superior trunk, recieving fibers from c5, c6 and often c4

Question 7

Whats the innervation of the subclavian nerve?

Answer 7

Subclavius and sternocoavicular joint

Question 8

Whats the origin of the lateral pectoral nerve?

Answer 8

Side branch of lateral cord, recoeving fibers from c5, c6, c7

Question 9

Whats the innervation of the lateral pectoral nerve?

Answer 9

Primary pectoralis major, but some lateral pectoral merve fibers pass to pactorakis minor via branch to medial pectoral nerve

Question 10

Whats the origin of the musculocuntaneuous?

Answer 10

The terminal branches of c5-c7

Question 11

Whats the innervation of the musculatenous?

Answer 11

Muscles of anterior compartment of arm

Question 12

Whats the origin of the median?

Answer 12

Lateral root of median nerves is a terminal branch of lateral cord (c6, c7) fibers; median root of median nerve is a terminal branch of median cord (c8, T1 fibers)

Question 13

Whats the innervation of the median?

Answer 13

Muscles of anterior forearm compartnment , five intrinsic muscles thenar half of palm and palmar skin

Question 14

Whats the origin of medial pectoral?

Answer 14

Side branches of medial cord of C8, t1

Question 15

Whats the innervation of the medial pectoral?

Answer 15

Pectoralis minor and sternocostal part of pectoraois major

Question 16

Whats the origin of medial cutaneous nerve of the arm?

Answer 16

Side branches of medial cord, recieiving fibers from c8, t1

Question 17

Whats the innervation of the medial cutaneous nerve of arm?

Answer 17

Skin of medial side of arm, as far distal as medial epicondyle of humerus and olecranon of ulna

Question 18

Whats the origin of the median cutaneous nerve of the forearm?

Answer 18

Side branches of medial cord, recieving fibers from c8, t1

Question 19

Whats the innervation of the medial cutaneous nerve of the forearm?

Answer 19

The skin of medial side of forearm, as far distal as wrist

Question 20

Whats the origin of the ulnar?

Answer 20

The larger terminal branch of medial cord recieving fibers from c8, t1 and often c7

Question 21

Whats the innervation of the ulnar?

Answer 21

Flexor carpi ulnaris and ulnar half of flexor digitorum profundis(forearm); most intrinsic muscles of hand; skin of hand medial to axis line of digit 4

Question 22

Whats the origin of the upper subscapular?

Answer 22

Side branch of posterior cord recieving fibers from c5

Question 23

Whats the innervation of the upper subscapular?

Answer 23

Superior portion of subscapularis

Question 24

Whats the origin of the lower subscapular?

Answer 24

Side branch of posterior cord, recieving fibers from c6

Question 25

Whats the innervation of the lower subscapular?

Answer 25

Inferior portion of subscapularis and teres major

Question 26

Whats the origin of the thoracodorsal?

Answer 26

Side branch of posterior cord, recieving fibers from c6, c7, c8

Question 27

Whats the innervation of the thoracodorsal?

Answer 27

Latissimus dorsi

Question 28

Whats the origin of the axillary?

Answer 28

Terminal branch of posterior cord, recieving fibers from c5,c6

Question 29

Whats the innervation of the axillary?

Answer 29

Glenuhumeral (shoulder) joint, teres minor and deltoid muscles,mskin of superolateral arm

Question 30

Whats the origin of the radial?

Answer 30

Larger terminal branch of posterior cord (largest branch of plexus) recieving fibers from c5-t1

Question 31

Whats the innervation of the radial?

Answer 31

All muscles of posterior compartments pf arm and forearm; skin of anterior and inferplateral arm, posterior forearm, and dorsum of hand lateral tp axial line of digit 4