What occurs during inspiration?

During inspiration, the diaphragm contracts, which is a key muscle involved in the breathing process. When the diaphragm contracts, it moves downward, creating a vacuum effect in the thoracic cavity. This increase in volume leads to a decrease in internal pressure, allowing air from the environment to rush into the lungs. As a result, the chest expands due to the movement of the ribs upward and outward, further aiding in the intake of air.

This process of contraction and expansion is crucial for the efficient exchange of gases, as it increases the capacity of the lungs and enhances oxygen intake. Understanding this mechanism is fundamental for professionals in health and beauty industries, as it relates to overall body function and well-being.