Bones of the Abdomen

Overview

The lumbar spine forms the supportive posterior boundary of the abdomen and plays a key role in weight-bearing and movement. This section introduces its structural features and regional organisation.

Key Structures

Coverage includes the vertebral structure, intervertebral joints and supporting ligaments of the lumbar spine, highlighting their functional adaptations.

Clinical Relevance and Learning Focus

Understanding lumbar anatomy is essential for assessing back pain, nerve compression, spinal trauma and regional anaesthesia. This foundation supports safe examination and imaging interpretation.

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The Lumbar Spine

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Illustration of the superficial muscles of the back, highlighting their anatomical positions.
Encyclopaedia

Trapezius

by Aren Mnatzakanian

An anatomical illustration of the right side of the head and neck showing the posterior auricular vein and tributaries in blue, with the retromandibular vein in purple and external jugular vein in green.
Encyclopaedia

Posterior Auricular Vein

by Jared Tang

Diagram illustrating the borders of the triangular interval.
Anatomical Areas

The Triangular Interval

by Dr Oliver Jones