Posterior and Superior Mediastinum

Dr. Morton explains the mediastinum, a central compartment in the thoracic cavity, detailing its regions: superior and inferior mediastinum, with a focus on the posterior mediastinum. The posterior mediastinum is likened to the organized wiring behind a TV, containing structures like the descending aorta, azygos veins, thoracic duct, esophagus, and sympathetic nerves. The superior mediastinum is divided into venous, arterial, and visceral planes, each with specific anatomical features. The video emphasizes understanding the organization and function of these mediastinal structures.

What is the significance of the azygos system of veins?

How does the sympathetic nervous system interact with the mediastinum?

Summarize the key points about the superior mediastinum.

Identify the main arteries that arise from the aortic arch.