Week 9 part 2 - Wrist joint Flashcards
Wrist consists of 2 joints
radiocarpal joints
midcarpal joint
joint motions
flexion
Neutral - straight up
Extension
radial deviation - side bending to thumb
ulnar deviation - side bending to pinky
Some Lovers Try Positions That They Can’t Handle
Scaphoid
Lunate
Triquetrum
Pisiform
Trapezium
Trapezoid
Capitate
Hamate
Superficial layers of anterior forearm
flexor carpi radialis
Palmer longus
Flexor carpi ulnaris
Pronator teres
Flexor carpi ulnaris OIA
O: Medial epicondyle
I: Base of 5th metacarpal, pisiform
A: Wrist flexion, ulnar deviation
Flexor carpi radialis OIA
O: Medial epicondyle
I: Base of 2nd and 3rd metacarpals
A: Wrist flexion, radial deviation
Palmaris longus OIA
O: Medial epicondyle
I: Palmer fascia
A: Assists in wrist flexion
Extensor carpi radialis longus (ECRL) OIA
O: Just above lateral epicondyle - supracondylar ridge
I: Base of 2nd metacarpal
A: Wrist extension, Radial deviation, Assists elbow extension
Extensor carpi radialis brevis (ECRB) OIA
O: Lateral epicondyle
I: Base of 3rd metacarpal
A: Prime mover of wrist extension, Assists in elbow extension
Extensor carpi ulnaris (ECU) OIA
O: Lateral epicondyle
I: Base of 5th metacarpal
A: Prime mover of wrist extension, Prime mover of ulnar deviation, assists in elbow extension
Phalanges are what?
Fingers
Metacarpals
Palm of hand
Carpals
wrist bones
DIP
Distal interphalangeal joints
PIP
Proximal interphalangeal joint
