Anterior compartment of the arm
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| Anterior compartment of the arm | |
|---|---|
 | |
| Cross-section through the middle of upper arm. | |
| Artery | brachial artery |
| Nerve | musculocutaneous nerve |
The anterior compartment of the arm is known as the "flexor compartment" as flexion is its main action.
The muscles contained therein are the biceps brachii, brachialis, and coracobrachialis.
They are all supplied by the musculocutaneous nerve, which arises from the fifth, sixth, and seventh cervical spinal nerves (see Brachial plexus).
External links
- Norman/Georgetown lesson4nervesofant&postarm
- Anatomy at Dartmouth elbow/muscles/muscles1
- Anatomy at MUN msk/arm
- Overview at tufts.edu
General anatomy of upper limbs | |
|---|---|
| Arm | Axilla • Axillary sheath • axillary folds (Anterior, Posterior)
spaces (Quadrangular space, Triangular space, Triangular interval) • Clavipectoral triangle compartment of arm (Posterior, Anterior) fascia (Axillary, Brachial) - intermuscular septa (Lateral, Medial) |
| Forearm | Cubital fossa (Bicipital aponeurosis) • Cubital tunnel • common tendons (Extensor, Flexor) • Interosseous membrane of the forearm
compartment of forearm (Posterior, Anterior) fascia (Antebrachial fascia) |
| Hand | posterior: Extensor retinaculum • Extensor expansion • Vincula tendina • Anatomical snuff box
anterior: Flexor retinaculum • Carpal tunnel • Palmar aponeurosis • Ulnar canal • Synovial sheath (Common synovial sheath for the flexor tendons]) Finger |
