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Arm Muscles
| Question | Answer |
|---|---|
| Biceps Brachii | Origin: Scapula Insertion: Radius Action: Flexion/supination of the forearm Comments: Power |
| Triceps Brachii | Origin: Scapula + humerus Insertion: Ulna Action: Forearm extender Comments: Power |
| Flexor carpi ulnaris | Origin: Medial epicondyle of the humerus Insertion: Metacarpal V + Pisiform/Hamate bones Action: Wrist/hand flexor Comments: Think pinkie |
| Flexor carpi radialis | Origin: medial epicondyle of the humerus Insertion: metacarpals 2/3 Action: Wrist/hand flexor Comments: Think thumb side |
| Palmaris longus | Origin: Medial epicondyle of the humerus Insertion: Palmar aponeurosis Action: Wrist/hand flexor Comments: Think palm |
| Flexor digitorum superficialis | Origin: Medial epicondyle of the humerus Insertion: Middle phalanges Action: Wrist/hand flexor Comments: Think digits/phalanges |
| Extensor digitorum | Origin: Lateral epicondyle of the humerus Insertion: Tendons of distal phalanges Action: Prime extender of fingers Comments: Different than the others |