During inhalation, what occurs in the respiratory process?

During inhalation, breathing air into the lungs is the primary action that occurs. This process begins when the diaphragm contracts and moves downward, creating a negative pressure in the thoracic cavity. As a result, air is drawn from the environment into the lungs through the respiratory passages. This allows oxygen to enter the bloodstream, where it is then transported to cells throughout the body to support metabolic processes.

Inhalation is essential for maintaining adequate oxygen levels in the body and is a crucial part of the respiratory cycle. While other processes such as the expulsion of carbon dioxide happen during exhalation, the focus during inhalation is specifically on the intake of fresh air.