Question 6SavedDetermine what happens when the diaphragm contracts. Hint: Select three options.The lungs shrinkThe lungs expandAir pressure in the lungs increasesAir pressure in the lungs decreasesAir is drawn into the lungs (inhalation)Air is forced out of the lungs (exhalation)

When the diaphragm contracts:

1. The lungs expand: The diaphragm is a muscle that separates the chest cavity from the abdominal cavity. When it contracts, it moves downwards, increasing the space in your chest cavity. This allows the lungs to expand.

2. Air pressure in the lungs decreases: As the lungs expand, the pressure inside them decreases. This is due to Boyle's law, which states that the pressure and volume of a gas have an inverse relationship when the temperature is held constant. In this case, as the volume of the lungs (the gas container) increases, the pressure decreases.

3. Air is drawn into the lungs (inhalation): The decrease in pressure inside the lungs creates a pressure gradient between the inside of the lungs and the outside environment. This causes air to flow from an area of higher pressure (the outside environment) to an area of lower pressure (inside the lungs), resulting in inhalation.