Areas of the Thorax

Overview

The mediastinum is the central compartment of the thorax and contains vital cardiovascular, respiratory and lymphatic structures. This section outlines the four major mediastinal regions, providing a framework for understanding the organisation of thoracic anatomy and the spatial relationships between its key organs.

Key Structures

Topics include the superior, anterior, middle and posterior mediastinum, with descriptions of their boundaries, major contents and anatomical relationships. Each region is presented in a clear, clinically oriented format to support learning.

Clinical Relevance and Learning Focus

Understanding mediastinal anatomy is essential for interpreting imaging, recognising the spread of infection or malignancy, assessing acute chest symptoms and planning thoracic procedures. This section provides a foundation for clinical examination and diagnostic reasoning.

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The Superior Mediastinum

Diagram illustrating the superior, anterior, middle, and posterior mediastina of the thorax.

The Anterior Mediastinum

Illustration of the great vessels of the middle mediastinum, highlighting their origins within the middle mediastinum.

The Middle Mediastinum

Illustration of the azygos venous network draining into the superior vena cava, related to the posterior mediastinum.

The Posterior Mediastinum

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