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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Diagram of the muscles of the posterior abdominal wall, including Psoas Minor, Psoas Major, and Iliacus.
Encyclopaedia

Psoas Minor

by Aren Mnatzakanian

Overview of the anatomical course of the facial nerve (CN VII).
The Cranial Nerves

The Facial Nerve (CN VII)

by Liam Curry

Diagram illustrating the recurrent branch of the median nerve, highlighting its origin distal to the carpal tunnel and its innervation of the thenar muscles in the hand.
Encyclopaedia

Recurrent Branch of Median Nerve

by Kumail Jaffry