Muscles of the hand

flexor carpi radialis origin

medial epicondyle of humerus

flexor carpi radialis insertion

base of 2nd and 3rd metacarpals

flexor carpi radialis joint spanned

humerus/radius/carpals

flexor carpi radialis action

flexes wrist and abducts hand

flexor carpi ulnaris origin

medial epicondyle of humerus and olecranon process

flexor carpi ulnaris insertion

carpals & metacarpals (5th)

flexor carpi ulnaris joint spanned

humerus/ulna/carpals

flexor carpi ulnaris action

flexes writs and adducts hand

flexor digitum profundus origin

anterior surface of ulna

flexor digitum profundus insertion

bases of distal phalanges in fingers 2-5

flexor digitum profundus joint spanned

humerus/ulna/carpals/metacarpals

flexor digitum profundus action

flexes fingers & wrist

flexor digitorum superficialis origin

medial epicondyle of humerus & coronoid process of ulna & radius

flexor digitorum superficialis insertion

tendons of fingers of the medial phalanx 2-5

flexor digitorum superficialis joint spanned

humerus/ulna/carpals/metacarpals

flexor digitorum superficialis action

extends wrist & abducts hand

extensor carpi radialis origin

distal end of humerus & lateral epicondyle

extensor carpi radialis insertion

base of 2nd & 3rd metacarpals

extensor carpi radialis joint spanned

humerus/ulna/metacarpals

extensor carpi radialis action

extends wrist & abducts hand

extensor carpi ulnaris origin

lateral epicondyle of humerus

extensor carpi ulnaris insertion

base of 5th metacarpal

extensor carpi ulnaris joint spanned

humerus/ulna/metacarpals

extensor carpi ulnaris action

extends wrist & adducts hand

extensor digitorum origin

lateral epicondyle of humerus

extensor digitorum insertion

posterior surfaces of phalanges in fingers 2-4

extensor digitorum joint spanned

humerus/ulna/metacarpals/phalanges

extensor digitorum action

extends fingers

opponen pollicis origin

carpals

opponen pollicis insertion

distal end of pollux metacarpal

oppponen pollicis joint spanned

carpal/metacarpal

opponen pollicis action

flexes thumb

adductor pollicis origin

3rd metacarpal

adductor pollicis insertion

pollux metacarpal & proximal end of proximal phalanx of pollux

adductor pollicis action

moves thumb towards fingers

abductor pollicis brevis origin

transverse carpal ligament (flexor retinaculum)

abductor pollicis brevis insertion

proximal end of proximal phalanx of pollux

abductor pollicis brevis action

moves thumb away from fingers

flexor pollicis brevis

transverse carpal ligament (flexor retinaculum)

flexor pollicis brevis action

flexes thumb out at angle

opponens digiti minimi origin

transverse carpal ligament (flexor retinaculum)

opponens digiti minimi insertion

proximal phalynx of 5th digit

opponens digiti minimi action

pulls pinky toward thumb

abductor digiti minimi origin

pisiform (carpal) & reticunaculum

abductor digiti minimi insertion

lateral side of proximal phalynx of 5th digit

abductor digiti minimi action

pulls pinky outwards

extensor digiti minimi origin

lateral epicondyle of humerus

extensor digiti minimi insertion

posterior surface of phalanges in fingers

extensor digiti minimi action

extends fingers

flexor digiti minimi origin

transverse carpal ligament (flexor retinaculum)

flexor digiti minimi insertion

lateral side of proximal phalynx of the 5th digit

flexor digiti minimi action

flexes pinky toward palm

palmar interosseous origin

proximal ends of metacarpals 2 4 & 5

palmar interosseous insertion

proximal end of phalanges 2, 4, & 5

palmar interosseous action

pulls digits 2 4 & 5 towards middle

dorsal interosseus origin

proximal end of metacarpals

dorsal interosseus insertion

proximal end of proximal phalanges 2 3 & 4

dorsal interosseus action

abducts digits 2 3 & 4 to sides

lumbrical origin

metacarpals 2-5

lumbrical insertion

lateral side of proximal phalanges 2-5

lumbrical action

flexes digits