The Respiratory System

The video tutorial explains the process of breathing, starting with air entering the body through the nose or mouth. It describes how air is cleaned and processed in the nasal cavity, travels through the pharynx and larynx, and is protected from choking by the epiglottis. The trachea and bronchi are introduced as pathways to the lungs, where gas exchange occurs. The tutorial emphasizes the importance of each component in the respiratory system.

How does the structure of the trachea facilitate its function?

Explain the process of gas exchange in the lungs.