Brachial Plexus Flashcards Preview

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Flashcards in Brachial Plexus Deck (32):
1

What structures are innervated by the dorsal scapular nerve

Rhomboids

2

What structures are innervated by the Long thoracic

serratus anterior

3

What structures are innervated by the suprascapular

supraspinatus and infraspinatus muscles
glenohumoral joint

4

What structures are innervated by the Subclavian nerve

subclavius and sternoclavicular joint

5

What structures are innervated by the lateral pectoral

primarily pectoralis major

6

What structures are innervated by the musculocutaneous

muscles of anterior compartment of the arm
1. coracohrachialis
2. biceps brachii
3. brachialis

skin of lateral arm

7

What structures are innervated by the median nerve

1. muscle of anterior fore arm compartment (except for flexor carpi ulnaris and ulnar half of flexor digitorum profundous)
2. five intrinisc muscles in thenar half of palm
3. palmar skin

8

What structures are innervated by the medial pectoral nerve

percoralis minor
sternocostal part of pectoralis major

9

What structures are innervated by the medial cutaneous nerve of arm

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

10

What structures are innervated by the median cutaneous nerve of forearm

skin of medial side of forearm as far distal as the wrist

11

What structures are innervated by the ulnar nerve

flexor carpi ulnaris and ulnar half of flexor digitorum profundus (for arm)

most intrinisc muscles of hand

skin of hand medial to axial line of digit 4

12

What structures are innervated by the upper suubscapular nerve

superior portion of subscapularis

13

What structures are innervated by the lower subscapular

inferior portion of subscapularis and teres major

14

What structures are innervated by the thoracodorsal nerve

latissimus dorsi

15

What structures are innervated by the axillary nerve

glenohumeral joint

teres minor and deltoid muscles

skin of superolateral arm

16

What structures are innervated by the radial nerve

All muscles of posterior compartments of arm and forearm

skin of posterior and inferolateral arm, posterior forarm and dorsum of hand lateral to axial line of digit 4

17

What is the origin of the dorsal scapular nerve

posterior aspect of anterior ramus of C5 with a frequent contribution from C4

18

What is the origin of the long thoracic nerve

Posterior aspect of anterior rami of C5, C6, and C7

19

What is the origin of the supra scapular nerve

Superior trunk, receiving fibers from C5, C6, C7 and often C4

20

What is the origin of the Subclavian Nerve

Superior trunk, receiving input from C5, C6 and often C4

21

What is the origin of the Lateral pectoral nerve

Side branch of lateral cord, Receiving fibers from C5, C6, and C7

22

What is the origin of the musculocutaneous nerve

Terminal branch of lateral cord, receiving fibers from C5-C7

23

What is the origin of the Median nerve

Lateral root of median nerve is a terminal branch of lateral of lateral cord (C6, C7)

Medial root of median nerve is a terminal branch of medial cord (C8, T1)

24

What is the origin of the Medial Pectoral Nerve

Side branches of of medial cord, receiving fibers from C8, T1

25

What is the origin of the Medial cutaneous nerve of arm

Side branches of of medial cord, receiving fibers from C8, T1

26

What is the origin of the Median cutaneous nerve of forearm

Side branches of of medial cord, receiving fibers from C8, T1

27

What is the origin of the Ulnar nerve

Larger terminal branch of medial cord, receiving fibers from C8, T1 and often C7

28

What is the origin of the Upper sub scapular nerve

Side branch of posterior cord, receiving fibers from C5

29

What is the origin of the lower subscapular

side branch of posterior cord receiving fibers from C6

30

What is the origin of the throracodorsal nerve

side branch of posterior cord, receiving fibers from C6, C7, C8

31

What is the origin of the axillary nerve

Terminal branch of posterior cord, receiving fibers from C5, C6

32

What is the origin of the Radial Nerve

Larger terminal branch of posterior cord (Largest branch of plexus) receiving fibers from C5-T1