Superior Legs:
Superficial Muscles:
Ventral View: Dorsal View:
1: Clavobrachialis; Forearm flexion
2: Acromiodeltoid; Flex and rotate at shoulder (Humerus)
3: Long Head of Triceps Brachii; Extend forearm
4: Spinodeltoid; Flex and rotate at shoulder (Humerus)
5: Lateral Head of Triceps Brachii; Extend forearm
6: Pectoantebrachialis (folded back, not in humans); Adduction of arms
2: Acromiodeltoid; Flex and rotate at shoulder (Humerus)
3: Long Head of Triceps Brachii; Extend forearm
4: Spinodeltoid; Flex and rotate at shoulder (Humerus)
5: Lateral Head of Triceps Brachii; Extend forearm
6: Pectoantebrachialis (folded back, not in humans); Adduction of arms
Deep Muscles: Forearm Muscles:
Ventral view: Dorsal view:
1: Biceps Brachii and Brachialis; Forearm flexion 8: Flexor Carpi Ulnaris; Flexes wrist/paw
2: Long Head of Triceps Brachii; Forearm extension 9: Extensor Carpi Ulnaris; Extends wrist/paw
3: Extensor Carpi Radialis Longus; Paw extension 10: Extensor Digitorum Lateralis; Extends digits
4: Extensor Carpi Radialis Brevis; Paw extension 11: Extensor Digitoris Communis; Extends digits
5: Flexor Carpi Radialis; Flexes second and third metacarpals 12: Extensor Carpi Radialis Longus; Extends paw
6: Palmaris Longus; Flexes digits 13: Brachioradialis; Supinate forearm
7: Pronator Teres; Paw pronation
2: Long Head of Triceps Brachii; Forearm extension 9: Extensor Carpi Ulnaris; Extends wrist/paw
3: Extensor Carpi Radialis Longus; Paw extension 10: Extensor Digitorum Lateralis; Extends digits
4: Extensor Carpi Radialis Brevis; Paw extension 11: Extensor Digitoris Communis; Extends digits
5: Flexor Carpi Radialis; Flexes second and third metacarpals 12: Extensor Carpi Radialis Longus; Extends paw
6: Palmaris Longus; Flexes digits 13: Brachioradialis; Supinate forearm
7: Pronator Teres; Paw pronation