062 Pressure Changes during Breathing

This video tutorial by Leslie Samuel explores the mechanics of breathing, focusing on pressure changes during inhalation and exhalation. It covers the anatomy of the thoracic, pleural, and pulmonary cavities, and the roles of the diaphragm and intercostal muscles. The tutorial explains how these muscles contract and relax to facilitate breathing, and discusses the differences between normal and forced breathing. The video concludes with a summary and directs viewers to additional resources on interactive-biology.com.

What happens to the pressure in the pleural cavity when the diaphragm contracts?

Explain the process of air moving into the lungs during inhalation.

How does forced breathing differ from normal breathing?