Wrist Joint Flashcards
What type of joint is the wrist joint?
Synovial condyloid or ellipsoid
Which bone forms the proximal part of the wrist joint?
The radius
Which carpal bones form the distal articular part of the wrist joint?
The proximal row
What movements are possible at the wrist joint?
Flexion Extension Circumduction Ulnar deviation Radial deviation
What is the action of most of the anterior compartment muscles of the forearm on the wrist joint?
Flexes hand at the wrist
What is the combined action of extensor and flexor carpi ulnaris muscles on the wrist joint?
They act as adductors or cause radial deviation
Which muscles cause abduction of the wrist?
Flexor carpi radialis
Extensor carpi radialis
Radialis longus
What is the action of most of the posterior compartment muscles of the forerarm on the wrist joint?
Extends the wrist joint
What are the proximal row of carpal bones, from lateral to medial?
Scaphoid
Lunate
Triquetrum
Pisiform
What are the distal row of carpal bones, from lateral to medial?
Trapezium
Trapezoid
Capitate
Hamate
