How is ventilation defined in respiratory physiology?

Ventilation refers to the process of moving air into and out of the lungs, which is essential for enabling gas exchange. This movement involves inhalation, where we take in oxygen-rich air, and exhalation, where we expel carbon dioxide-laden air, thus maintaining the necessary balance of gases in the body. It is a mechanical process that involves the respiratory muscles and is crucial for providing oxygen to the alveoli, the tiny air sacs in the lungs where gas exchange occurs.

Understanding ventilation is fundamental for EMTs, as effective ventilation is vital for patient care in emergencies, including situations of respiratory distress or failure, where the ability to adequately ventilate may be compromised. This highlights the importance of recognizing and addressing ventilation issues in both assessing and managing respiratory conditions.