wrist and hand
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20 Terms
proximal row (carpus)
scaphoid
lunate
triquetral
pisiform
distal row (carpal)
trapezium
trapezoid
capitate
hamate
scaphoid
scaphoid tubercule responsible for blood supply
palpable
lunate
articulates with scaphoid and triquetral in proximal and distal row
triquetrum/ pisiform
sesamoid bone
trapezium
palpable tubercule
forms first carpometacarpal joint with the first base of the first metacarpal
important for mobility of thumb
capitate
largest of carpal bones
articulates distally with base of MC3
hamate
large hook palpable in muscles on medial side of promixal palm
hook of hamate
articulates distally with bases of MCs 4 and 5
bones of hand
metacarples 1-5
phalanges 14
phalanges
5 digits
each finger has 3 phalanges (prox, mid, distal)
thumb has 2 phalanges (prox,distal)
joints
radiocarpal joint (wrist joint)
carpal joints (mid and intercarpal joints)
carpometacarpal
metacarpal phalangealc
proximal interphalangealc
distal interphalangeal
movement at radio and mid carpal joint
flexion 85
extension 85
radial deviation 15
ulnar deviation 45
thumb movements at carpometacarpal joint
flexion/ extension 40-50
abduction adduction 80
opposition
wrist flexors
flexor capri ulnaris
flexor capri radialis
palmaris longus
flexor digitorum superficilalis
flexor digitorum profundus
flexor pollicis longus
wrist extensors
extensor capri radialis longus
extensor capri radialis brevis
extensor capri ulnaris
extensor digitorum
extensor digiti minimi
extensor indicis
extensor pollicis longus
extensor pollicis brevis
wrist radial deviation joints
flexor capri radialis
extensor capri radialis longus and brevis
abductor pollicis longus
extensor pollicis brevis
wrist ulna deviation joints
flexor capri ulnaris
extensor capri ulnaris
thumb movements
flexion - flexor pollicis and brevis
adduction - adductor pollicis
opposition - opponents pollicis
extension- extensor pollicis longus and brevis
abduction - abductor pollicis
finger flexion and extension
flexor digitorum superficialis
flexor digitorum profundus
extensor digitorum
extensor digiti minimi
extensor indicis
finger abduction and adduction
dorsal interossei (abd)
palmer interossei (add)