muscles of the arm!
DESCRIPTION
Muscles of the Arm!. 1. 2. 3. 4. 6. 5. 7. 8. 12. 9. 13. 10. 14. 15. 11. 16. 17. 19. 18. 20. 22. 21. 23. 24. Supinator. Pronator Teres. Pronator Q uadratus. 25. 26. 27. - PowerPoint PPT PresentationTRANSCRIPT
Muscles of the Arm!
1
2345
6
1011 15
1314
12
7
8
9
16
17
1918
20
2124
22
23
Supina-tor
Pronator Teres
Pronator Quadratus
25
27
26
Muscles Origin InsertionBiceps Brachii Coracoid process and tuber-
cle above glenoid cavity of scapula
Radial tuberosity of radius
Deltoid Acromion process, spine of scapula, and clavicle
Deltoid tuberosity of humerus
Brachialis Anterior shaft of humerus Coronoid process of ulnaSupinator Lateral epicondyle of
humerus and crest of ulnaLateral surface of radius
Pronator teres Medial epicondyle of humerus and coronoid process of ulna
Lateral surface of radius
Brachioradialis Distal lateral end of humerus Lateral surface of radius above styloid process
Extensor carpi radialis longus
Distal end of humerus Base of second metacarpal
Flexor carpi radialis Medial epicondyle of humerus
Base of second and third metacarpals
Palmaris longus Medil epicondyle of humerus Fascia of palm
Flexor carpi ulnaris Medial epicondyle of humerus and olecranon process
Carpal and metacarpal bones
Pronator quadratus Anterior distal end of ulna Anterior distal end of radius
Extensor carpi radialis brevis Lateral epicondyle of humerus
Base of second and third metacarpals
Extensor digitorum Lateral epicondyle of humerus
Posterior surface of pha-langes in fingers 2-5
Muscles ActionBiceps Brachii Flexes forearm at elbow and ro-
tates hand laterally
Deltoid Abducts arm, extends or flexes humerus
Brachialis Flexes forearm at elbow
Supinator Rotates forearm laterally
Pronator Teres Rotates forearm medially
Brachioradialis Flexes forearm at elbow
Extensor Carpi Radialis Longus Extends wrist and abducts hand
Flexor Carpi Radialis Flexes and abducts wrist
Palmaris Longus Flexes wrist
Flexor Carpi Ulnaris Flexes and abducts wrist
Pronator Quadratus Rotates forearm medially
Extensor Carpi Radialis Brevis Extends wrist and abducts hand
Extensor Digitorum Extends fingers