Origin and insertions of forearm PDF

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Summary

origins and insertions...

Description

Muscle Anterior pronator teres Flexor carpi radialis Palmaris longus Flexor carpi ulnaris

Origin Medial epicondyle of humerus Medial epicondyle of humerus Medial epicondyle of humerus Medial epicondyle of humerus

Insertion Lateral radius

Action Pronates forearm

2nd and third metacarpals

Flexes hand at wrist, abducts hand Flexes hand at wrist

Palmar apuneorosis Pisiform, hamate and 5th metacarpal

Flexes hand at wrist

Distal phalanges 2nd to 5th digits. Middle phalanges 2nd to 5th digit

Flexes distal interphalangeal joints Flexes hand at wrist

Adducts hand

Olecranon

Flexor digitorum profundus Flexor digitorum supericialis

Shaft of ulna Ulna and interosseous membrane Medial epicondyle of humerus

Coronoid process of ulna and shaft of radius Flexor pollicis Anterior longus radius and interosseous membrane Pronator Distal and quadratus anterior ulna shaft Posterior Lateral brachioradialis suprcondular ridge of humerus Extensor carpi Lateral radialis longus suprcondular ridge of humerus Extensor carpi Lateral radialis brevis epicondyle of humerus Extensor digitorum

Lateral epicondyle of

Flexes proximal interphalangeal joints Distal phalanx Flexes 1st of pollex interphalangeal joints Distal and anterior radius Styloid process of radius

Pronates forearm

2nd metacarpal

Abducts hand

3rd metacarpal

Distal phalanges of

Flexes forearm at elbow

Extends hand at wrist Abducts hand Extends hand at wrist Extends distal interphalangeal

nerve

Extensor carpi ulnaris

Supinator

Abductor pollics longus

extensor pollicis brevis

Extensor pollicis longus

Extensor indicis

Extensor digiti minimi

humerus Lateral epicondyle of humerus and posterior ulna

2nd to 5th digits joints 5th Extends distal metacarpal interphalangeal joints only

Lateral epicondyle of humerus and proximal ulna Posterior radius and ulna and interosseous membrane Posterior radius and ulna and interosseous membrane Posterior radius and ulna and interosseous membrane Posterior ulna and interosseous membrane Lateral epicondyle of humerus

Proximal end of radius

Abducts hand Supinates forearm

Trapezium, 1st metacarpal

Abducts pollex

Proximal phalanx of metacarpal

Extends 1st interphalangeal joints

Distal phalanx Extends 1st of pollex interphalangeal joints Distal phalanx Extends 2nd of 2nd digit interphalangeal joints Distal phalanx Extends 5th of 5th digit distal interphalangeal joint...