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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Superior view of the intrinsic muscles of the larynx, highlighting their anatomical arrangement.
Encyclopaedia

Posterior Cricoarytenoid

by Roxanne Salkeld

Diagram illustrating the course of the supratrochlear nerve within the bony orbit.
Encyclopaedia

Supratrochlear Nerve

by Dieudonne Nabayo

Diagram illustrating the circumflex scapular artery passing through the triangular space into the posterior scapular region.
Anatomical Areas

The Triangular Space

by Dr Oliver Jones