upper extremity innervation and blood supply Flashcards Preview

MSS 1 > upper extremity innervation and blood supply > Flashcards

Flashcards in upper extremity innervation and blood supply Deck (57):
1

Trapezius

innervated by accesspry nerve (CN IX)
Blood supply: branches of thyrocervical trunk

2

Levator scapulae

innervated by dorsal scapular nerve
Blood supply: dorsal scapular artery

3

rhomboid major

innervated by dorsal scapular nerve
Blood supply: dorsal scapular artery

4

rhomboid minor

innervated by dorsal scapular nerve
Blood supply: dorsal scapular artery

5

Latissimus dorsi

innervated by thoracodorsal nerve
blood supply: throacodorsal artery

6

supraspinatus

innervated by suprascapular nerve
blood supply: suprascapular artery

7

infraspinatus

innervated by suprascapular nerve
blood supply: suprascapular artery and circumflex artery

8

teres minor

innervated by axillary nerve
blood supply: circumflex scapular and posterior humeral circumflex arteries

9

subscapularis

innervated by upper and lower scapular nerves
blood supply: subscapular artery

10

Teres major

innervated by lower scapular nerve
blood supply: circumflex scapular and subscapular arteries

11

deltoid

innervated by axillary nerve
blood supply: deltoid branch of the thoracoacromial artery and anterior and posterior humeral circumflex arteries

12

pectoralis major

innervated by lateral and medial pectoral nerves
blood supply: thoracoacromial trunk (pectoral branch)

13

pectoralis minor

innervated by medial pectoral nerve
blood supply: throacoacromial trunk (pectoral branch)

14

subclavius

innervated by nerve to subclavius
blood supply: thoracoacromial trunk (clavicular branch)

15

serratus anterior

innervated by long thoracic nerve
blood supply: lateral thoracic and thoracodorsal anteries

16

coracobrachialis

innervated by musculocutaneous nerve
blood supply: brachial artery

17

brachailis

innervated by musculocutaneous and radial nerves
blood supply: brachial artery

18

biceps brachii

innervated by musculocutaneous nerve
blood supply: brachial artery

19

triceps brachii

innervated by radial nerve
blood supply: profunda brachii artery (deep brachial artery)

20

anconeus

innervated by radial nerve
blood supply: profunda brachii artery (deep brachial artery)

21

Posterior compartment muscles

superficial: brachioradialis, extensor carpi radialis brevis, extensor carpi radialis longus, extensor digitorum, extensor digiti minimi, and extensor carpi ulnaris

Deep: supinator, abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus, and extensor indicis

22

brachioradialis

innervated by radial nerve
blood supply: radial recurrent artery

23

extensor carpi radialis brevis

innervated by radial nerve
blood supply: radial artery and radial recurrent artery

24

extensor carpi radialis longus

innervated by radial nerve
blood supply: radial artery and radial recurrent artery

25

extensor digitorum

innervated by radial nerve
blood supply: posterior interosseous artery

26

extensor digiti minimi

innervated by radial nerve
blood supply: posterior interosseous artery

27

extensor carpi ulnaris

innervated by radial nerve
blood supply: posterior interosseous artery

28

supinator

innervated by radial nerve
blood supply: radial recurrent and posterior interosseous arteries

29

abductor pollicis longus

innervated by radial nerve
blood supply: posterior interosseous artery

30

extensor pollicis brevis

innervated by radial nerve
blood supply: posterior interosseous artery

31

extensor pollicis longus

innervated by radial nerve
blood supply: posterior interosseous artery

32

extensor indicis

innervated by radial nerve
blood supply: posterior interosseous artery

33

anterior compartment forearm muscles

superficial: pronator teres, flexor carpi radialis, palmaris longus, and flexor carpi ulnaris

Middle layer: flexor digitorum superficialis

deep layer: flexor digitorum profundus, flexor pollicis longus, and pronator quadratus

34

pronator teres

innervated by median nerve
blood supply: anterior ulnar recurrent artery

35

flexor carpi radialis

innervated by median nerve
blood supply: radial artery

36

palmaris longus

innervated by median nerve
blood supply: posterior ulnar recurrent artery

37

flexor carpi ulnaris

innervated by ulnar nerve
blood supply: posterior ulnar recurrent artery

38

flexor digitorum superficialis

innervated by median nerve
blood supply: ulnar and radial artery

39

flexor digitorum profundus

innervated by median (lateral 1/2) and ulnar nerve (medial 1/2)
blood supply: anterior interosseous artery and muscular branches of ulnar artery

40

flexor pollicis longus

innervated by median nerve
blood supply: anterior interosseous artery

41

pronator quadratus

innervated by median nerve
blood supply: anterior interosseous artery

42

hand compartments

thenar, adductor, central, interosseous, and hypothenar

43

thenar compartment muscles

flexor pollicis brevis (superficial and deep heads), adductor pollicis brevis, and opponens pollicis

44

flexor pollicis brevis

superficial head innervated by median nerve; deep head innervated by ulnar nerve
blood supply: superficial palmar arch

45

abductor pollicis brevis

innervated by median nerve
blood supply: superficial palmar arch

46

opponens pollicis

innervated by median nerve
blood supply: superficial palmar arch

47

adductor compartment muscles

adductor pollicis (transverse and oblique heads)

48

adductor pollicis

innervated by ulnar nerve
blood supply: deep palmar arch

49

central compartment muscles

lumbricals 1-4

50

lumbricals

1-2 innervated by median nerve; 3-4 innervated by ulnar nerve
blood supply: superficial and deep palmar arches and digital arteries
Action:
Digits 2-5
MCP joints: Flexion
PIP & DIP joints: Extension

51

interosseous compartment muscles

palmar interossei (1-3) and dorsal interossei (1-4)

52

palmar interossei

innervated by ulnar nerve
blood supply: deep palmar arch (metacarpal arteries)
ADduction of digits 2, 4, 5 (towards digit 3).

53

dorsal interossei

innervated by ulnar nerve
blood supply: deep palmar arch (metacarpal arteries)
ABduction of digits 2-4 (digit 3 ABducts both medially and laterally)

54

hypothenar compartment muscles

abductor digiti minimi, flexor digiti minimi brevis, and opponens digiti minimi

55

abductor digiti minimi

innervated by ulnar nerve
blood supply: superficial palmar arch

56

flexor digiti minimi brevis

innervated by ulnar nerve
blood supply: superficial palmar arch

57

opponens digiti minimi

innervated by ulnar nerve
blood supply: superficial palmar arch