Forearm Muscles Flashcards
Brachioradialis
Origin: lateral supracondylar ridge of the humerus
Insertion: styloid process of the radius
Action: flexes forearm at elbow, stabilized elbow during flexion and extension
Brachioradialis
Extensor Carpi Radialis Longus
Origin: lateral supracondylar ridge of the humerus
Insertion: 2nd metacarpal
Action: extends hand at wrist abducts hand
Extensor Carpi Radialis Longus
Extensor Carpi Radialis Brevis
Origin: lateral supracondylar ridge of the humerus
Insertion: 2nd metacarpal
Action: extends hand at wrist, abducts hand
Extensor carpi radialis brevis
Extensor Digitorum
Extensor Digitorum
Origin: lateral epicondyle of the humerus
Insertion: distal phalanges of the 2nd to 5th digit
Action: extends distal interphalangeal joints, extends hands at wrist
Extensor Carpi Ulnaris
Supinator
Origin: lateral epicondyle of the humerus, proximal ulna
Insertion: proximal end of radius
Action: supinates forearm
Supinator
Abductor Pollicis Longus
Origin: posterior radius, postier ulna, interosseous membrane
Insertion: trapezium, 1st metacarpal
Action: abducts pollex
Abductor Pollicis Longus
Extensor Pollicis Longus
Origin: posterior radius, postier ulna, interosseous membrane
Insertion: distal phalanx pollex
Action: extends 1st interphalangeal joint
Extensor Pollicis Longus