click below
click below
Normal Size Small Size show me how
Muscles - Wrist
Muscles of the Hand and Wrist
Term | Definition |
---|---|
flexor carpi radialis | origin: medial epicondyle of humerus |
flexor carpi radialis | insertion: bases of 2nd and 3rd metacarpal bones |
flexor carpi radialis | action: flexion and abduction at wrist |
flexor carpi ulnaris | origin: lateral epicondyle of humerus and adjacent surfaces of ulna |
flexor carpi ulnaris | insertion: pisiform bone, hamate bone, and base of 5th metacarpal bone |
flexor carpi ulnaris | action: flexion and adduction at wrist |
palmaris longus | origin: medial epicondyle of humerus |
palmaris longus | insertion: a tendinous sheet on the palm |
palmaris longus | action: flexion at wrist |
extensor carpi radialis | origin: distal lateral surface and lateral epicondyle of humerus |
extensor carpi radialis | insertion: bases of 2nd and 3rd metacarpal bones |
extensor carpi radialis | action: extension and abduction at wrist |
extensor carpi ulnaris | origin: lateral epicondyle of humerus and adjacent surface of ulna |
extensor carpi ulnaris | insertion: base of 5th metacarpal bone |
extensor carpi ulnaris | action: extension and adduction at wrist |
extensor digitorum | origin: lateral epicondyle of humerus |
extensor digitorum | insertion: posterior surfaces of the phalanges, fingers 2-5 |
extensor digitorum | action: extension at finger joints and wrist |
flexor digitorum | origin: medial epicondyle of humerus; anterior surfaces of ulna and radius; medial and posterior surfaces of ulna |
flexor digitorum | insertion: distal phalanges of fingers 2-5 |
flexor digitorum | action: flexion at finger joints and wrist |
abductor pollicis | origin: distal shaft of radius and the interosseus membrane |
abductor pollicis | insertion: lateral margin of first metacarpal bone |
abductor pollicis | action: abduction at thumb joints and wrist |