HST-AP Introduction to the Respiratory System

The video explains the respiratory system's role in survival, working with the circulatory system to facilitate gas exchange. It covers the phases of respiration, including inspiration and expiration, and details external and internal respiration processes. The video highlights the role of blood in transporting oxygen and carbon dioxide, and describes the main structures of the respiratory system, such as the nose, pharynx, larynx, trachea, bronchi, and alveoli. It also explains the diaphragm's function in breathing and concludes with a recap of key points.

How does the composition of inhaled air differ from that of exhaled air?

What are the main structures of the respiratory system and their functions?

What is the function of the diaphragm during respiration?