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MUSCLES labs 5-6

Muscles Labs 5-6

by sklambert92, May 2015

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	Palmaris Longus: Origin	medial epicondyle of humerus
	Palmaris Longus: insertion	palmar aponeurosis and flexor retinaculum
	Palmaris Longus: Action	flexes hand, tenses flexor retinaculum
	Palmaris Longus: Innervation	median n
	Palmaris Longus: Blood Supply	Ulnar A
	Flexor Digitorum Superficialis: Origin	medial epicondyle of humerus, coronoid process of ulna, radial tuberosity
	Flexor Digitorum Superficialis: Insertion	middle phalanx of digits 2-5
	Flexor Digitorum Superficialis: Action	flexes wrist, flexes middle and proximal phalanges of digits 2-5
	Flexor Digitorum Superficialis: Innervation	Median nerve
	Flexor Digitorum Superficialis: Blood Supply	Ulnar a
	Flexor Pollicis longus: Origin	Anterior surface of radius
	Flexor Pollicis longus: Insertion	base of distal phalanx of thumb
	Flexor Pollicis longus:Action	flexes distal phalanx of thumb
	Flexor Pollicis longus: Innervation	Median n
	Flexor Pollicis longus: Blood Supply	anterior interosseous a.
	flexor digitorum profundus: Origin	ulna and interosseous membrane
	flexor digitorum profundus: Insertion	base of palmar surface of distal phalanges 2-5
	flexor digitorum profundus: Action	Flexes wrist, flexes distal phalanx
	flexor digitorum profundus: Innervation	median n. and ulnar n.
	flexor digitorum profundus: Blood supply	Ulnar a. and anterior interosseous a.
	Flexor carpi radialis: Origin	medial epicondyle of humerus
	Flexor carpi radialis: Insertion	2nd-3rd metacarpal
	Flexor carpi radialis: Action	flexion & abduction (radial) of the hand
	Flexor carpi radialis: Innervation	median n
	Flexor carpi radialis: Blood Supply	ulnar a.
	Flexor carpi Ulnaris: Origin	medial epicondyle of humerus, olecranon (ulna)
	Flexor carpi Ulnaris: Insertion	pisiform bone, hook of hamate, base of metacarpal 5
	Flexor carpi Ulnaris: Action	flexes wrist, adducts hand
	Flexor carpi Ulnaris: Innervation	ulnar n
	Flexor carpi Ulnaris: Blood Supply	ulnar a.
	Pronator Quadratus: Origin	distal anterior surface of ulna
	Pronator Quadratus: Insertion	Distal anterior surface of radius
	Pronator Quadratus: Action	Pronates hand
	Pronator Quadratus: Innervation	median n (interosseous branch)
	Pronator Quadratus: Blood supple	anterior interosseous a
	Supinator: Origin	lateral epicondyle of humerus, ulna, ligaments
	Supinator: Insertion	dorsal, lateral surfaces of body of radius
	Supinator: Action	supinates hand and forearm by rotating radius around ulna
	Supinator: Innervation	deep radial n
	Supinator: Blood supply	radial recurrent a
	Extensor carpi radialis longus: Origin	lateral epicondyle of humerus
	Extensor carpi radialis longus: Insertion	2nd metacarpal
	Extensor carpi radialis longus: Action	extension & abduction of wrist
	Extensor carpi radialis longus: Innervation	radial n
	Extensor carpi radialis longus: Blood supply	radial a
	Extensor carpi radialis brevis: Origin	lateral dorsal surfaces of radius & ulna
	Extensor carpi radialis longus: Insertion	1st metacarpal
	Extensor carpi radialis longus: Action	abduction at wrist & thumb
	Extensor carpi radialis longus: Innervation	deep radial n
	Extensor carpi radialis longus: blood vessels	posterior interosseous artery
	Extensor Carpi Ulnaris: Origin	lat. epi. of humerus (common tendon)
	Extensor Carpi Ulnaris: Insertion	5th metacarpal
	Extensor Carpi Ulnaris: Action	extension & adduction of wrist
	Extensor Carpi Ulnaris: Innervation	deep branch of radial n.
	Extensor Carpi Ulnaris: Blood Supply	ulnar a.
	extensor digitorum: Origin	lat. Epi. of humerus (common tendon)
	extensor digitorum: Insertion	dorsal digital expansions of digits 2-4
	extensor digitorum: Action	extension of wrist, ext. & abd. of digits 2-5
	extensor digitorum: Innervation	deep radial n.
	extensor digitorum: Blood Supply	posterior interosseous a.
	extensor indicis: Origin	posterior surface of ulna
	extensor indicis: Insertion	posterior digital expansion of index finger
	extensor indicis: Action	extension of wrist and joints of second digit
	extensor indicis: Innervation	deep radial n
	extensor indicis: Blood Supply	posterior interosseous a.
	extensor pollicis longus: Origin	posterior surface of ulna
	extensor pollicis longus: Insertion	base of last phalanx of thumb
	extensor pollicis longus: Action	extension of thumb, abduction of wrist
	extensor pollicis longus: Innervation	deep radial n.
	extensor pollicis longus: Blood Supply	posterior interosseous a.
	flexor pollicis brevis: Origin	flexor retinaculum, trapezium, trapezoid and capitate bones
	flexor pollicis brevis: Insertion	proximal phalanx of thumb
	flexor pollicis brevis: Action	flexes proximal phalanx of thumb, flexes and medially rotates metacarpal bone
	flexor pollicis brevis: Innervation	median n. (superficial) & ulnar n., deep branch
	flexor pollicis brevis: Blood Supply	radial a.
	abductor pollicis brevis: Origin	flexor retinaculum, scaphoid, trapezium
	abductor pollicis brevis: insertion	radial base of proximal phalanx of thumb
	abductor pollicis brevis: Action	abducts thumb
	abductor pollicis brevis: Innervation	median n., recurrent branch
	abductor pollicis brevis: Blood Supply	radial a.
	opponens pollicis: Origin	flexor retinaculum, scaphoid, trapezium
	opponens pollicis: Insertion	lateral border metacarpal bone of thumb
	opponens pollicis: Action	opposition of thumb
	opponens pollicis: Innervation	median n.
	opponens pollicis: Blood Supply	radial a
	flexor digiti minimi brevis: Origin	hook of hamate, flexor retinaculum
	flexor digiti minimi brevis: Insertion	base of proximal phalanx of pinky
	flexor digiti minimi brevis: Action	flexion at joints of pinky
	flexor digiti minimi brevis: Innervation	ulnar n., deep branch
	flexor digiti minimi brevis: Blood supply	ulnar a.
	abductor digiti minimi: Origin	pisiform bone
	abductor digiti minimi: Insertion	medial side of proximal phalanx of pinky
	abductor digiti minimi: Action	abducts pinky
	abductor digiti minimi: Innervation	ulnar n., deep branch
	abductor digiti minimi: Blood supply	ulnar a.
	opponens digiti minimi: Origin	flexor retinaculum, hook of hamate
	opponens digiti minimi: Insertion	ulnar border of metacarpal 5
	opponens digiti minimi: Action	opposition of pinky (across palm)
	opponens digiti minimi: Innervation	ulnar n.
	opponens digiti minimi: Blood supply	ulnar a.
	dorsal interossei: Origin	trapezium
	dorsal interossei: Insertion	base of proximal phalanges 2-4
	dorsal interossei: Action	abduction of MCP joints of digits 2&4, flexion at MCP, extension of interphalangeal joints
	dorsal interossei: Innervation	ulnar n.
	dorsal interossei: Blood supply	dorsal and palmar metacarpal arteries
	lumbricals: Origin	tendons of flexor digitorum profundus
	lumbricals: Insertion	extensor expansion of same digit
	lumbricals: Action	flexes MCP joint, extends PIP and DIP joints
	lumbricals: Innervation	1&2: median n., 3&4: ulnar n., deep branch
	lumbricals: Blood Supply	superficial palmar arch, common palmar digital arteries, deep palmar arch
	adductor pollicis: origin	metacarpal (2&3) and carpal bones
	adductor pollicis: Insertion	base of proximal phalanx of thumb
	adductor pollicis: Action	adducts thumb
	adductor pollicis: Innervation	ulnar n., deep branch
	adductor pollicis: Blood supply	deep palmar arterial arch

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