상지 운동별 근육의 신경분포

상지 운동별 근육의 신경분포

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Joint	Motion	Muscle	Nerve innervation
Scapular	abduction	serratus anterior	long thoracic(C5,6,7)
	elevation	trapezius(sup. fiber)	accessory (spinal portion Cr.11)
		levator scapulae	C3,4 & frequently branch from dorsal scapular(C5)
	adduction	trapezius(mid. fiber)	accessory portion (spinal portion Cr.11)
		rhomboid major & minor	dorsal scapular(C5)
	depression & adduction	trapezius(inf. fiber)	accessory (spinal portion Cr.11)
	adduction & downward rotation	rhomboid major & minor	dorsal scapular(C5)

Joint	Motion	Muscle	Nerve innervation
Shoulder	flexion	deltoid(ant. fiber)	axillary(C5,6)
		coracobrachialis	musculocutaneous(C6,7)
	extension	latissimus dorsi	thoracodorsal(C6,7,8)
		teres major	inferior subscapular(C5,6)
		deltoid(post. fiber)	axillary(C5,6)
	abduction	deltoid(mid. fiber)	axillary(C5,6)
		supraspinatus	suprascapular(C5)
	horizontal abduction	deltoid(post. fiber)	axillary(C5,6)
	horizontal adduction	pectoralis major	med.& lat.pectoral(C5~8,T1)
	lateral rotation	infraspinatus	suprascapular(C5,6)
		teres minor	axillary(C5,6)
	medial rotation	subscapularis	sup.& inf. subscapular(C5,6)
		pectoralis major	med.& lat.pectoral(C5~8,T1)
		latissimus dorsi	thoracodorsal(C6,7,8)
		teres major	inf. subscapular(C5,6)
Elbow	flexion	biceps brachii	musculocutaneous(C5,6)
		brachialis	musculocutaneous(C5,6)& from radial
		brachioradialis	radial(C5,6)
	extension	triceps brachii	radial(C7,8)
Forearm	supination	biceps brachii	musculocutaneous(C5,6)
		supinator	radial(C6)(deep branch)
	pronation	pronator teres	median(C6,7)
		pronator quadratus	median(C8,T1)(palmar interosseous branch)
Wrist	flexion	FCR	median(C6,7)
		FCU	ulnar(C8,T1)
	extension	ECR longus	radial(C6,7)
		ECR brevis
		ECU	deep radial(C6,7,8)
MCP of finger	flexion	lumbricals 1st, 2nd	median(C6,7)
		lumbricals 3rd, 4th	ulnar(C8 deep palmar branch)
		dorsal interossei	ulnar(C8,T1 deep palmar branch)
	extension	extensor digitorum	deep radial(C6,7,8)
		extensor indicis
		extensor digiti minimi
IP finger	flexion	FDS	median(C7,8,T1)
Finger	abduction	dorsal interossei	ulnar(C8,T1 deep palmar branch)
		abductor digiti minimi	ulnar(C8,T1)
	adduction	palmar interossei	ulnar(C8,T1 deep palmar branch)
Thumb	flexion(MCP)	FPB(lateral portion)	median(C6,7)
		FPB(medial portion)	ulnar(C8,T1 deep palmar branch)
	flexion(IP)	FPL	median(C8,T1 palmar interossei branch)
	extension(MCP)	EPB	deep radial(C6,7)
	extension(IP)	EPL	deep radial(C6,7,8)
	abduction	abductor PL	deep radial(C6,7)
		abductor PB	median(C6,7)
	adduction	ad P oblique head	ulnar(C8,T1 deep palmar branch)
		ad P transverse head
Thumb 5th finger	opposition	opponens pollicis	median(C6,7)
		opponens digiti minimi	ulnar(C8,T1)

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