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Hand

Hand muscles

QuestionAnswer
Flexor Digitorum Superficialis orgin Common Flexor tendon, coronoid process, and radius
Flexor Digitorum Superficialis insert Sides of the middle phalanx of th four fingers
Flexor Digitorum Action Flexes the MCP and PIP joints of the fingers
Flexor digitorum nerve Median nerve (C7,C8,T1)
Flexor digitorum profundus orgin upper three fourths of the ulna
Flexor digitorum profundus insertion distal phalanx of the four phalanges
Flexor digitorum profundus action flexes all three joints of the fingers
Flexor digitorum profundus nerve median and ulnar nerves (C8, T1)
Extensor digitorum muscle orgin lateral epicondyle of the humerus
extensor digitorum muscle insertion base of disal phalanx of the second throught fifth fingers
extensor digitorum muscle action extends all three joints of the fingers
extensor digitorum muscle nerve radial nerve (c6, c7, c8)
Extensor indicis muscle orgin Distal ulna
extensor indicis muscle insertion base of distal phalanx of the second finger
extensor indicis action extends all three joints of the second finger
extensor indicis muscle nerve radial nerve (c6, c7, c8)
extensor digiti minimi muscle lateral epicondyle of humerus
extensor digiti minimi insertion base of distal phalanx fifth finger
extensor digiti minimi action extends all three joints of fifth finger
extensor digiti minimi nerve radial nerve (c6, c7, c8)
flexor pollicis longus muscle orgin radius, anterior surface
flexor pollicis longus muscle insertion distal phalanx of thumb
flexor pollicis longus muscle action flexes all three joints of the thumb
flexor pollicis longus muscle nerve median nerve (c8, t1)
abductor pollicis longus orgin posterior radius, interosseous membrane, middle ulna
abductor pollicis longus muscle insertion base of the first metacarpal
abductor pollicis longus muscle action abducts thumb
abductor pollicis longus muscle nerve radial nerve
extensor pollicis brevis muscle orgin posterior distal radius
extensor pollicis brevis muscle insertion base of the proximal phalanx of thumb
extensor pollicis longus muscle orgin middle posterior ulna and interosseous membrane
extensor pollicis longus muscle insertion base of distal phalanx of thumb
extensor pollicis longus muscle action extends all three joints of the thumb
extensor pollicis longus muscle nerve radial nerve (c6, c7, c8)
flexor pollicis brevis muscle orgin trapezium and flexor retinaculum
flexor pollicis brevis muscle insertion proximal phalanx
flexor pollicis brevis muscle nerve median nerve (c6, c7)
abductor pollicis brevis muscle orgin scaphoid, trapezium and flexor retinaculum
abductor pollicis brevis muscle insertion proximal phalanx
abductor prollicis brevis muscle action abducts the thumb (CMC joint)
abductor pollicis brevis muscle nerve median nerve (c6, c7)
opponens pollicis muscle orgin trapezium and flexor retinaculum
opponens pollicis muscle insertion first metacarpal
opponens pollicis muscle action opposes the thumb (CMC joint)
opponens pollicis muscle nerve median nerve (c6, c7)
abductor pollicis muscle orgin capitate, base of the second metacarpal, palmar surface of the third metacarpal
flexor digiti minimi muscle hamate and flexor retinaculum
flexor digiti minimi muscle insertion base of proximal phalancx 5th finger
flexor digiti minimi muscle action flexes cmc and mcp joints of the fifth finger
flexor digiti minimi muscle nerve ulnar nerve (c8, t1)
abductor digiti minimi muscle orgin pisiform and tendon of flexor carpi ulnaris
abductor digiti minimi muscle insertion proximal phalanx of fifth finger
abductor digiti minimi muscle action abducts the mcp joint of the fifth finger
abductor digiti minimi muscle nerve ulnar nerve (c8, t1)
opponens digiti minimi muscle orgin hamate and flexor retinaculum
opponens digiti minimi muscle insertion opposes the fifth finger (cmc joint)
oponens digiti minimi muscle nerve ulnar nerve (c8, t1)
doral interossei adjacent metacarpals
dorsal interossei insertion base of proximal phalanx
dorsal interossei action abduct fingers at mcp joint
dorsal interossei nerve ulnar nerve c8, t1
palmar interossei muscles orgin respective metacarpal
palmar interossei muscle insertion base of respective proximal phalanx
palmar interossei muscle action abduct fingers at mcp joint
palmar interossei muscles nerve ulnar nerve c8, t1
lumbrical muscle orgin tendon of the flexor digitorum profundus muscle
lumbrical muscle insertion tendon of the extensor digitorum
lumbrical muscle action flesex the mcp joint while extendig the pip and dip joints
lumbrical muscles nerve first and second lumbricales: median nervethird and fourth lumbricales: ulnar verve (c6, c7, c8)
grasps power grip, cylindrical grip, precision grip, cylindrical grip variaion, spherical grip, pinch grip, hook grip, three-jaw chuck grip,pad to side grip and lumbrical grip, side to side grip
Created by: donald_dino