mus. (wrist & hand) Flashcards
extensor carpi radialis longus
o/1
i/1
o/
- (Distal third of) lateral supracondylar ridge of humerus
i/
- Base of 2nd metacarpal
extensor carpi radialis longus
a/2 /assist 1
*same brevis
a/
- Extend wrist
- Radially deviate wrist
Assists
- flexion of elbow
extensor carpi radialis brevis
o/1
i/1
o/
- Lateral epicondyle (via common extender tendon)
i/
- Base of 3rd metacarpal
extensor carpi radialis brevis
a/2/assist 1
*same longus
a/
- Extend wrist
- Radially deviate wrist
Assists
- flexion of elbow
extensor digitorum communus
o/1
i/2
o/
- Lateral epicondral of humerus (via extendor tendon)
i/
- Base of proximal and
- middle phalanges (of 2nd, 3rd, 4th and 5th fingers)
extensor digitorum communus
a/1/assist 1
a/
- Extend wrist & fingers
Assists
- extension of elbow
extensor carpi ulnaris
o/1
*Same as digitorum communis
i/1
o/
- Lateral epicondyle of humerus (via extendor tendon)
- *Same as digitorum communis*
i/
- Base of 5th metacarpal
extensor carpi ulnaris
a/2
a/
- Extend wrist
- Ulna deviate wrist (wrist adduction)
flexor group 1/3
flexor carpi radialis
o/1
i/1
o/
- Medial epicondyle of humerus (via common flexor tendon)
i/
- (Base of) 2nd & 3rd metacarpal
flexor group 1/3
flexor carpi radialis
a/2
*same as ulnaris but for radius
a/
- Flex wrist
- Radially deviate wrist
flexor group 1/3
palmaris longus
o/1
*same as group
i/1
o/
- Medial epicondyle of humerus (via common flexor tendon)
i/
Palmar aponeurosis (superficial fascial …. Just below surface of skin)
flexor group 1/3
palmaris longus
a/1
a/
- Wrist flexion
flexor group 1/3
flexor carpi ulnaris
o/ 1 *same as group
i/3
o/
- Medial epicondyle of humerus (via common flexor tendon)
i/
- Pisiform
- Hook of hamate
- (Base of) 5th metacarpal
flexor group 1/3
flexor carpi ulnaris
a/2
*same as radius but for ulna
a/
- Flex wrist
- Ulna deviate wrist
