The Thorax

Overview

The thorax houses vital organs responsible for respiration and circulation. This section introduces the skeletal framework, musculature and internal structures of the chest cavity, forming the foundation for understanding cardiopulmonary anatomy and physiology.

Key Structures

Learners can explore the lungs and pleura, the heart and great vessels, and the compartments of the mediastinum. Articles detail the anatomy of the diaphragm, thoracic wall and neurovascular bundles, combining structural detail with clear clinical context.

Clinical Relevance and Learning Focus

Knowledge of thoracic anatomy is essential for interpreting chest imaging, performing cardiovascular and respiratory examination, and guiding invasive procedures. Each topic integrates applied clinical anatomy, reinforcing understanding of the thorax in health and disease.

+ Read more

Areas

  • The Superior Mediastinum
  • The Middle Mediastinum
  • +2 more

Bones

  • The Thoracic Spine
  • The Sternum
  • +1 more

Muscles

  • The Diaphragm
  • The Muscles of the Thoracic Cage

Organs

  • The Valves of the Heart
  • The Chambers of the Heart
  • +12 more

Vasculature

  • The Superior Vena Cava

Popular

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

Extensor Hallucis Longus

by Roxanne Salkeld

Illustration depicting the deep muscles of the gluteal region, including the quadratus femoris, obturator internus, piriformis, and gemelli muscles.
Encyclopaedia

Piriformis

by Dr Oliver Jones

Diagram showing the anatomical course of the femoral nerve and its two cutaneous branches: anterior cutaneous fibers and saphenous nerve.
Encyclopaedia

Saphenous Nerve

by Sharanya Bhaskaran