Upper Limb Anatomy – Short Summary
1. Regions: Shoulder, arm (brachium), forearm (antebrachium), hand.
2. Bones: Clavicle, scapula, humerus, radius, ulna, carpals (8), metacarpals (5), phalanges (14).
3. Joints: Shoulder (glenohumeral), elbow, radioulnar, wrist (radiocarpal), interphalangeal joints.
4. Muscles: Shoulder (deltoid, rotator cuff), arm (biceps brachii, triceps brachii), forearm (flexors
and extensors), hand (intrinsic muscles).
5. Innervation: Brachial plexus (C5–T1): musculocutaneous, axillary, radial, median, ulnar nerves.
6. Blood Supply: Subclavian → axillary → brachial artery → radial and ulnar arteries.
7. Functions: Movement, manipulation, sensation, and fine motor skills.
