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 anterior forearm, including Flexor Carpi Ulnaris, Flexor Carpi Radialis, Palmaris Longus, and Pronator Teres.
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Palmaris Longus

by Dr Oliver Jones

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

by Roxanne Salkeld

Illustration of the obturator canal, showing the obturator membrane within the obturator foramen of the pelvis.
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Obturator Artery

by Charlotte Eeckelers