Areas of the Neck

Overview

The neck is divided into major triangular regions that provide a clear framework for understanding the organisation of its neurovascular and visceral structures. This section introduces the anterior and posterior triangles, which together form the basis for anatomical description, surface anatomy and surgical approaches in the cervical region.

Key Structures

Topics include the anterior triangle of the neck, with its subdivisions and important neurovascular and visceral contents, and the posterior triangle, which contains key muscular, vascular and neural structures. Each article outlines boundaries, subdivisions and anatomical relationships.

Clinical Relevance and Learning Focus

Knowledge of the cervical triangles is vital for interpreting surface landmarks, assessing trauma, evaluating lymphadenopathy and planning surgical access. These regions provide a practical framework for clinical examination and for understanding pathways of infection, referred pain and neurovascular compromise.

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Illustration showing the borders of the anterior triangle of the neck.

The Anterior Triangle of the Neck

The Posterior Triangle of the Neck

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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

Superior view of the pelvic floor with emphasis on the prerectal fibers of the puborectalis muscle.
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Puborectalis

by Aren Mnatzakanian

Illustration of the first layer of plantar muscles in the foot, showing the flexor digitorum beneath the cut plantar aponeurosis.
Encyclopaedia

Flexor Digitorum Brevis

by Sanya Trikha