Lecture
This lecture covers the anatomy and mechanics of the respiratory system, including the lungs, bronchial tree, heart, and diaphragm. It explains concepts such as lung lobes, pulmonary circulation, and the role of surfactant. The instructor discusses respiratory physiology, pressure-volume curves, and the mechanics of breathing, focusing on inspiration and expiration. The lecture also addresses compliance, hysteresis, and air circulation in the upper airways. Additionally, it explores the thoracic cavity dimensions, rib articulations, and the movement of the diaphragm during respiration.