Bones of the Thorax

Overview

The bony framework of the thorax protects vital organs and provides attachment points for respiratory muscles. This section introduces the main skeletal components and their roles in stability, protection and ventilation.

Key Structures

Topics include the ribs, sternum and thoracic spine, outlining their features, articulations and functional contributions to thoracic movement and respiration.

Clinical Relevance and Learning Focus

Knowledge of thoracic skeletal anatomy is important for assessing trauma, interpreting chest imaging and understanding respiratory mechanics. This section supports identification of fractures, deformities and degenerative changes.

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Illustration of the anatomical position of the sternum in the thorax.

The Sternum

Anatomical illustration of a typical rib showing bony landmarks.

The Ribs

The Thoracic Spine

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Illustration of the muscles of the medial thigh with anterior compartment muscles removed, highlighting the adductor group.
Encyclopaedia

Adductor Magnus

by Dr Oliver Jones

Lateral view of the neck highlighting the two heads of the sternocleidomastoid muscle innervated by the accessory nerve (CN XI).
Encyclopaedia

Sternocleidomastoid

by Dr Oliver Jones

Illustration of the superficial muscles of the anterior forearm, including Flexor Carpi Ulnaris, Flexor Carpi Radialis, Palmaris Longus, and Pronator Teres.
Encyclopaedia

Palmaris Longus

by Dr Oliver Jones