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16 Cards in this Set

  • Front
  • Back
hand and wrist
29 bones
25 joints
30 muscles (18 are in the hand only)
bones
carpals (8)
metacarpals (5)- 1 being the thumb
phalanges (14)- 3 each finger, 2 thumb
joint between the radius and the carpals
radiocarpal (wrist joint)
joint between the carpals
intercarpal joints: permit only slight gliding motion
however the gliding adds up to a modified hinge type of movement
joint between the carpals and metacarpals
carpometacarpal joints: joint of the thumb is a prime example of a saddle joint

- joint of the fingers have slight gliding movement
joint between the metacarpals and phalanges
metacarpophalageal joints (knuckles): proximal phalanges with metacarpals
-condyloid joints
-encase in capsules
-collateral ligaments
-thumb more of a hinge joint

flexion: surface of the thumb approaches base of thumb
extension: return movement of flexion
joint between the phalanges
interphalangeal joints: joint between adjacent phalanges of any of the 5 digits
all are hinge joint, permit only flexion and extension
strengthened by ligaments
radiocarpal joint
condyloid joint
4 ligaments
6 muscles of just the wrist
anterior: flexor carpi radialis, flexion carpi ulnaris, palmaris longus

posterior: extensor carpi radialis brevis, extensor carpi radialis longus, extensor carpi ulnaris
pollicus
thumb
digitorum
fingers
palmaris
palmar aspect of hand
carpi
carpal. metacarpal attachment
all wrist flexors generally have their origin...
on the anteromedial aspect of proximal forearm and medial epicondyle of humerus with insertions on the anterior aspect of the wrist and hand= start above elbow in the corner of the elbow
wrist extensors have their origins:
on the opposite corner of the elbow ( on the thumb side)
cooperative actions of wrist and digits
long fingers muscles do not have sufficient length to permit full ROM in joints of finders and wrist at the same time (tight fist and flex wrist thing)