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 the principle that volume and pressure are inversely proportional to each other in a gas.

3. Air is drawn into the lungs (inhalation): The decrease in pressure inside the lungs creates a pressure gradient between the lungs and the atmosphere. Because gases move from areas of high pressure to areas of low pressure, air from the atmosphere is drawn into the lungs. This process is known as inhalation.

Question

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 the principle that volume and pressure are inversely proportional to each other in a gas.

3. Air is drawn into the lungs (inhalation): The decrease in pressure inside the lungs creates a pressure gradient between the lungs and the atmosphere. Because gases move from areas of high pressure to areas of low pressure, air from the atmosphere is drawn into the lungs. This process is known as inhalation.

Knowee AI · Accepted Answer

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 the principle that volume and pressure are inversely proportional to each other in a gas.

3. Air is drawn into the lungs (inhalation): The decrease in pressure inside the lungs creates a pressure gradient between the lungs and the atmosphere. Because gases move from areas of high pressure to areas of low pressure, air from the atmosphere is drawn into the lungs. This process is known as inhalation.

Determine 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)I'm not sure

Question

Solution

Similar Questions

Upgrade your grade with Knowee