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 muscles of the anterior leg, including the anterior tibial artery.
Encyclopaedia

Tibialis Anterior

by Roxanne Salkeld

Joints of the Upper Limb

The Sternoclavicular Joint

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Lateral view diagram of the oral muscles of facial expression, highlighting the blending of buccinator and orbicularis oris fibers.
Encyclopaedia

Orbicularis Oris

by Max Bidewell