When you breathe out, the following steps occur:

1. Your diaphragm, a dome-shaped muscle at the bottom of your lungs, relaxes and moves upwards into the chest cavity.

2. The intercostal muscles between your ribs also relax, causing your ribcage to contract or move downwards and inwards.

3. This decrease in space in your chest cavity increases the pressure on your lungs.

4. The increased pressure forces air out of your lungs and out through your nose or mouth.

5. This process is known as exhalation or breathing out.

Question

When you breathe out, the following steps occur:

1. Your diaphragm, a dome-shaped muscle at the bottom of your lungs, relaxes and moves upwards into the chest cavity.

2. The intercostal muscles between your ribs also relax, causing your ribcage to contract or move downwards and inwards.

3. This decrease in space in your chest cavity increases the pressure on your lungs.

4. The increased pressure forces air out of your lungs and out through your nose or mouth.

5. This process is known as exhalation or breathing out.

Knowee AI · Accepted Answer

When you breathe out, the following steps occur:

1. Your diaphragm, a dome-shaped muscle at the bottom of your lungs, relaxes and moves upwards into the chest cavity.

2. The intercostal muscles between your ribs also relax, causing your ribcage to contract or move downwards and inwards.

3. This decrease in space in your chest cavity increases the pressure on your lungs.

4. The increased pressure forces air out of your lungs and out through your nose or mouth.

5. This process is known as exhalation or breathing out.

What happens to your ribcage when you breathe out?