What is ventilation?

Ventilation refers specifically to the process of moving air in and out of the lungs. This is essential for gas exchange, as it provides oxygen to the body and removes carbon dioxide. In the context of respiratory physiology, ventilation is crucial for maintaining adequate oxygen levels in the blood and ensuring that carbon dioxide is expelled, thus supporting overall metabolic function.

This process involves the mechanical movement of air through breathing, which is facilitated by the contraction and relaxation of the diaphragm and intercostal muscles. Adequate ventilation is vital in clinical and emergency situations, as impaired ventilation can lead to hypoxia (low oxygen levels) and other serious health issues. Understanding ventilation is fundamental for healthcare providers, especially when assessing respiratory distress or managing airway issues in patients.