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EXTENSOR COMPARTMENT : BACK OF FOREARM. 12 muscles 1. Anconeus 2. Brachioradialis (BR) 3. Extensor carpi radialis longus (ECRL) 4. Extensor carpi radialis brevis (ECRB) 5. Extensor digitorum (ED) 6. Extensor digiti minimi (EDM)
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EXTENSOR COMPARTMENT : BACK OF FOREARM 12 muscles 1. Anconeus 2. Brachioradialis (BR) 3. Extensor carpiradialislongus (ECRL) 4. Extensor carpiradialisbrevis (ECRB) 5. Extensor digitorum (ED) 6. Extensor digitiminimi (EDM) 7. Rxtensorcarpiulnaris (ECU) 8. Supinator (S) 9. Abductor pollicislongus (APL) 10. Extensor pollicisbrevis (EPB) 11. Extensor pollicislongus (EPL) 12 Extensor indicis (EI)
EXTENSOR COMPARTMENT : BACK OF FOREARM Anatomical snuff box: ABD, EPB, EPL
EXTENSOR COMPARTMENT : BACK OF FOREARM Origin All 7 superficial muscles cross elbow joint Arise from tip of lateral epicondyle of humerus 5 deep muscles arise from 2 bones of forearm & interosseous membrane
EXTENSOR COMPARTMENT : NERVE SUPPLY Aconeus Brachioradialis ECRL Radial nerve ECRB ED EDM ECU S APL EPB EPL EI Posterior interosseous nerve