Hand/Wrist Flashcards
origin of extensor digitorum
lateral condyle of humerus
insertion of extensor digitorum
dorsal base of fingers 2-5
action of the extensor digitorum
extensor
origin of extensor carpi ulnaris
lateral epicondyle of humerus
insertion of extensor carpi ulnaris
medial aspect of base of 5th metacarpal bone
action of extensor carpi ulnaris
extensor
ulnar deviator
origin of extensor carpi radialis brevis
lateral epicondyle of humerus
insertion of extensor carpi radialis brevis
dorsal aspect of base of 3rd metacarpal bone
action of extensor carpi radialis brevis
extensor
radial deviator
origin of extensor carpi radialis longus
inferior 1/3 lateral supracondylar ridge of humerus
insertion of extensor carpi radialis longus
dorsal base of 2nd metacarpal bone
action of extensor carpi radialis longus
extensor
radial deviator
origin of extensor indicis
posterior distal 1/3 ulna
adjacent interosseous membrane
insertion of extensor indicis
extensor expansion of index finger
action of extensor indicis
extensor
origin of flexor carpi radialis
medial epicondyle of humerus
insertion of flexor carpi radialis
palmar aspect of base of 2nd and 3rd metacarpal bones
action of flexor carpi radialis
flexor
radial deviator
origin of palmaris longus
medial epicondyle of humerus
insertion of palmaris longus
palmar aponeurosis
flexor retinaculum
action of palmaris longus
flexor
origin of flexor carpi ulnaris
medial epicondyle of humerus
insertion of flexor carpi ulnaris
pisiform, hamate, palmar aspect of base of 5th metacarpal bone
action of flexor carpi ulnaris
flexor
ulnar deviator
origin of flexor digitorum superficialis
medial epicondyle of humerus
insertion of flexor digitorum superficialis
palmar aspects of bodies of middle phalanges of fingers 2-5
action of flexor digitorum superficialis
flexor
origin of flexor digitorum profundus
coronoid process of ulna
insertion of flexor digitorum profundus
palmar base of distal phalanges of fingers 2-5
action of flexor digitorum profundus
flexor
origin abductor pollicis longus
posterior proximal ulna
middle 1/3 radius
insertion of abductor pollicis longus
lateral aspect of base of 1st metacarpal bone
action of abductor pollicis longus
abductor
extensor
origin of extensor pollicis longus
posterior surface of middle ulna
adjacent interosseous membrane
insertion of extensor pollicis longus
dorsal base of distal phalanx of thumb
action of extensor pollicis longus
extensor
origin of extensor pollicis brevis
posterior distal 1/2 radius
adjacent interosseous membrane
insertion of extensor pollicis brevis
dorsal base of proximal phalanx of thumb
action of extensor pollicis brevis
extensor
origin of abductor pollicis brevis
tubercles of scaphoid and trapezium
insertion of abductor pollicis brevis
lateral aspect of base of proximal phalanx of thumb
action of abductor pollicis brevis
adductor
origin of flexor pollicis brevis
tubercle of trapezium bone
palmar capitate and trapezoid bones
insertion of flexor pollicis brevis
lateral aspect of base of proximal phalanx of thumb
action of flexor pollicis brevis
flexor
origin of opponens pollicis
tubercle of trapezium bone
insertion of opponens pollicis
anterolateral aspect of 1st metacarpal bone
action of opponens pollicis
opposes
origin of adductor pollicis
palmar aspects of capitate bone
insertion of adductor pollicis
medial aspect of base of proximal phalanx of thumb
action of adductor pollicis
adductor
origin of lumbricals
1 - radial side + palmar surface of tendon of index finger
2 - radial side + palmar surface of tendon of middle finger
3 - ulnar side + middle finger tendon + radial side of ring finger tendon
4 - ulnar side of ring finger tendon + radial side of little finger tendon
insertion of lumbricals
radial aspect of the extensor hood of each digit
origin of dorsal interossei
adjacent side of metacarpal bones 1-5
insertion of dorsal interossei
1+2 - radial base of proximal phalanges of 2-3
3+4 - ulnar base of proximal phalanges of 3-4
action of dorsal interossei
metacarpophalangeal = finger abduction + flexion
interphalangeal = finger extension
origin of palmar interossei
ulnar side of metacarpal bone 2
radial side of metacarpal bones 4+5
insertion of palmar interossei
1 = ulnar base of proximal phalanx
extensor expansion of digit 2
2+3 = radial base of proximal phalanges/extensor expansions of digits 4+5
action of palmar interossei
adductor
flexor
origin of abductor digiti minimi
pisiform bone
insertion of abductor digiti minimi
medial aspect of base of proximal phalanx of little finger
action of abductor digiti minimi
abductor
origin of flexor digiti minimi
hook of hamate bone
insertion of flexor digiti minimi
medial aspect of base of proximal phalanx of little finger
action of flexor digiti minimi
flexor
origin of opponens digiti minimi
hook of hamate bone
insertion of opponens digiti minimi
medial aspect of 5th metacarpal bone
action of opponens digiti minimi
opposes little finger towards thumb
origin of extensor digiti minimi
lateral epicondyle of humerus
insertion of extensor digiti minimi
extensor expansion of little finger
action of extensor digiti minimi
extensor
origin of flexor pollicis longus
anterior radius
adjacent interosseous membrane
insertion of flexor pollicis longus
palmar aspect of base of distal phalanx of thumb
action of flexor pollicis longus
flexor