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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Muscles of the Upper Limb

Muscles in the Anterior Compartment of the Forearm

by Dr Oliver Jones

Illustration of the quadratus lumborum muscle in the posterior abdominal wall.
Encyclopaedia

Quadratus Lumborum

by Aren Mnatzakanian

Diagram illustrating the borders of the triangular interval.
Anatomical Areas

The Triangular Interval

by Dr Oliver Jones