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The Proximal Interphalangeal Joint
…and ulnar nerves within the hand. Clinical Relevance – Proximal Interphalangeal Joint Dislocation Trauma to the hand can often result in dislocation of the proximal interphalangeal joint. The PIPJ is…
Superficial Radial Nerve
…dorsum of the hand. Course The superficial radial nerve originates in the cubital fossa as the radial nerve divides into superfical and deep branches at the level of the lateral…
Venous Drainage of the Upper Limb
The venous system of the upper limb drains deoxygenated blood from the arm, forearm and hand. It can be subdivided into the superficial system and the deep system. In this…
The Elbow Joint
…the bursa. Dislocation An elbow dislocation usually occurs when a young child falls on a hand with the elbow flexed. The distal end of the humerus is driven through the…
Muscles in the Posterior Compartment of the Forearm
…Muscles in the deep layer of the posterior forearm. Abductor Pollicis Longus The abductor pollicis longus is situated immediately distal to the supinator muscle. In the hand, its tendon contributes…
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The Humerus
…an outstretched hand. The key neurovascular structures at risk here are the axillary nerve and posterior circumflex artery. Axillary nerve damage will result in paralysis to the deltoid and teres…
Palmaris Brevis
The palmaris brevis is an intrinsic muscle of the hand. It is a small, thin muscle, found superficially in the subcutaneous tissue of the hypothenar eminence. Attachments: Originates from the…
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The Metacarpophalangeal Joint
The metacarpophalangeal joint is an articulation between the metacarpal head and the base of the proximal phalanx. There are five joints located in each hand – one for each digit….