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MSS 1 > upper extremity innervation and blood supply > Flashcards

upper extremity innervation and blood supply Flashcards

1
Q

Trapezius

A

innervated by accesspry nerve (CN IX)

Blood supply: branches of thyrocervical trunk

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2
Q

Levator scapulae

A

innervated by dorsal scapular nerve

Blood supply: dorsal scapular artery

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3
Q

rhomboid major

A

innervated by dorsal scapular nerve

Blood supply: dorsal scapular artery

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4
Q

rhomboid minor

A

innervated by dorsal scapular nerve

Blood supply: dorsal scapular artery

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5
Q

Latissimus dorsi

A

innervated by thoracodorsal nerve

blood supply: throacodorsal artery

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6
Q

supraspinatus

A

innervated by suprascapular nerve

blood supply: suprascapular artery

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7
Q

infraspinatus

A

innervated by suprascapular nerve

blood supply: suprascapular artery and circumflex artery

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8
Q

teres minor

A

innervated by axillary nerve

blood supply: circumflex scapular and posterior humeral circumflex arteries

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9
Q

subscapularis

A

innervated by upper and lower scapular nerves

blood supply: subscapular artery

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10
Q

Teres major

A

innervated by lower scapular nerve

blood supply: circumflex scapular and subscapular arteries

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11
Q

deltoid

A

innervated by axillary nerve

blood supply: deltoid branch of the thoracoacromial artery and anterior and posterior humeral circumflex arteries

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12
Q

pectoralis major

A

innervated by lateral and medial pectoral nerves

blood supply: thoracoacromial trunk (pectoral branch)

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13
Q

pectoralis minor

A

innervated by medial pectoral nerve

blood supply: throacoacromial trunk (pectoral branch)

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14
Q

subclavius

A

innervated by nerve to subclavius

blood supply: thoracoacromial trunk (clavicular branch)

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15
Q

serratus anterior

A

innervated by long thoracic nerve

blood supply: lateral thoracic and thoracodorsal anteries

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16
Q

coracobrachialis

A

innervated by musculocutaneous nerve

blood supply: brachial artery

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17
Q

brachailis

A

innervated by musculocutaneous and radial nerves

blood supply: brachial artery

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18
Q

biceps brachii

A

innervated by musculocutaneous nerve

blood supply: brachial artery

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19
Q

triceps brachii

A

innervated by radial nerve

blood supply: profunda brachii artery (deep brachial artery)

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20
Q

anconeus

A

innervated by radial nerve

blood supply: profunda brachii artery (deep brachial artery)

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21
Q

Posterior compartment muscles

A

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

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22
Q

brachioradialis

A

innervated by radial nerve

blood supply: radial recurrent artery

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23
Q

extensor carpi radialis brevis

A

innervated by radial nerve

blood supply: radial artery and radial recurrent artery

24
Q

extensor carpi radialis longus

A

innervated by radial nerve

blood supply: radial artery and radial recurrent artery

25
Q

extensor digitorum

A

innervated by radial nerve

blood supply: posterior interosseous artery

26
Q

extensor digiti minimi

A

innervated by radial nerve

blood supply: posterior interosseous artery

27
Q

extensor carpi ulnaris

A

innervated by radial nerve

blood supply: posterior interosseous artery

28
Q

supinator

A

innervated by radial nerve

blood supply: radial recurrent and posterior interosseous arteries

29
Q

abductor pollicis longus

A

innervated by radial nerve

blood supply: posterior interosseous artery

30
Q

extensor pollicis brevis

A

innervated by radial nerve

blood supply: posterior interosseous artery

31
Q

extensor pollicis longus

A

innervated by radial nerve

blood supply: posterior interosseous artery

32
Q

extensor indicis

A

innervated by radial nerve

blood supply: posterior interosseous artery

33
Q

anterior compartment forearm muscles

A

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
Q

pronator teres

A

innervated by median nerve

blood supply: anterior ulnar recurrent artery

35
Q

flexor carpi radialis

A

innervated by median nerve

blood supply: radial artery

36
Q

palmaris longus

A

innervated by median nerve

blood supply: posterior ulnar recurrent artery

37
Q

flexor carpi ulnaris

A

innervated by ulnar nerve

blood supply: posterior ulnar recurrent artery

38
Q

flexor digitorum superficialis

A

innervated by median nerve

blood supply: ulnar and radial artery

39
Q

flexor digitorum profundus

A

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

40
Q

flexor pollicis longus

A

innervated by median nerve

blood supply: anterior interosseous artery

41
Q

pronator quadratus

A

innervated by median nerve

blood supply: anterior interosseous artery

42
Q

hand compartments

A

thenar, adductor, central, interosseous, and hypothenar

43
Q

thenar compartment muscles

A

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

44
Q

flexor pollicis brevis

A

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

45
Q

abductor pollicis brevis

A

innervated by median nerve

blood supply: superficial palmar arch

46
Q

opponens pollicis

A

innervated by median nerve

blood supply: superficial palmar arch

47
Q

adductor compartment muscles

A

adductor pollicis (transverse and oblique heads)

48
Q

adductor pollicis

A

innervated by ulnar nerve

blood supply: deep palmar arch

49
Q

central compartment muscles

A

lumbricals 1-4

50
Q

lumbricals

A

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
Q

interosseous compartment muscles

A

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

52
Q

palmar interossei

A

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

53
Q

dorsal interossei

A

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

54
Q

hypothenar compartment muscles

A

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

55
Q

abductor digiti minimi

A

innervated by ulnar nerve

blood supply: superficial palmar arch

56
Q

flexor digiti minimi brevis

A

innervated by ulnar nerve

blood supply: superficial palmar arch

57
Q

opponens digiti minimi

A

innervated by ulnar nerve

blood supply: superficial palmar arch

MSS 1 (8 decks)

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