FLEXOR CARPI ULNARIS
| ORIGIN Humeral head: common flexor origin of medial epicondyle. Ulnar head: aponeurosis from medial olecranon and upper three quarters subcutaneous border of ulna |
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| INSERTION Pisiform, hook of hamate, base of 5th metacarpal via pisohamate and pisometacarpal ligaments |
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| ACTION Flexes and adducts wrist. Fixes pisiform during action of hypothenar muscles |
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| NERVE Ulnar nerve (C8, T1) (with some C7 by communication from lateral cord) |