During which process does the diaphragm contract and move downwards?

During inhalation, the diaphragm contracts and moves downward, allowing the lungs to expand. When the diaphragm contracts, it creates a negative pressure in the thoracic cavity, which causes air to flow into the lungs. This process is a critical component of breathing, as it enables the body to take in oxygen and expel carbon dioxide effectively.

Inhalation is an active process, primarily driven by the diaphragm and the intercostal muscles, which helps to increase the volume of the chest cavity. This facilitates the movement of air into the lungs, where gas exchange occurs. Understanding how the diaphragm functions during this phase is essential for grasping the mechanics of respiration and overall respiratory health.