Joints of the Head

Overview

The temporomandibular joint (TMJ) enables mastication, speech and complex jaw movements. This section introduces its structure and functional mechanics.

Key Structures

Topics cover the joint surfaces, articular disc, ligaments and muscular influences on TMJ movement.

Clinical Relevance and Learning Focus

TMJ anatomy is essential for assessing jaw pain, dysfunction and disorders of movement. Understanding this joint supports dental, surgical and musculoskeletal evaluation.

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Illustration of the osteology of the temporomandibular joint, highlighting its bony surfaces.

The Temporomandibular Joint

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Illustration showing the deep branch of the radial nerve piercing the supinator muscle, identified as the posterior interosseous nerve.
Encyclopaedia

Posterior Interosseous Nerve

by Dr Oliver Jones

Diagram illustrating the course and variable branching pattern of the superior thyroid artery.
Encyclopaedia

Superior Thyroid Artery

by Dr Oliver Jones

Illustration of the deep posterior forearm muscles, color-coded as supinator, abductor pollicis longus, extensor pollicis longus and brevis, and extensor indicis, with a corresponding legend.
Encyclopaedia

Abductor Pollicis Longus

by Dr Oliver Jones