When the diaphragm and external intercostal muscles relax, it results in exhalation, or the process of breathing out. Here's the step-by-step process:

1. The diaphragm, a dome-shaped muscle located below the lungs, relaxes and moves upwards into the thoracic cavity.

2. The external intercostal muscles, located between the ribs, also relax, causing the ribs to lower.

3. These movements decrease the space in the chest cavity, reducing its volume.

4. As the volume of the chest cavity decreases, the pressure inside it increases.

5. This increased pressure forces air out of the lungs, resulting in exhalation.

So, the relaxation of the diaphragm and external intercostal muscles is a crucial part of the breathing process, specifically in allowing us to exhale.

Question

When the diaphragm and external intercostal muscles relax, it results in exhalation, or the process of breathing out. Here's the step-by-step process:

1. The diaphragm, a dome-shaped muscle located below the lungs, relaxes and moves upwards into the thoracic cavity.

2. The external intercostal muscles, located between the ribs, also relax, causing the ribs to lower.

3. These movements decrease the space in the chest cavity, reducing its volume.

4. As the volume of the chest cavity decreases, the pressure inside it increases.

5. This increased pressure forces air out of the lungs, resulting in exhalation.

So, the relaxation of the diaphragm and external intercostal muscles is a crucial part of the breathing process, specifically in allowing us to exhale.

Knowee AI · Accepted Answer

When the diaphragm and external intercostal muscles relax, it results in exhalation, or the process of breathing out. Here's the step-by-step process:

1. The diaphragm, a dome-shaped muscle located below the lungs, relaxes and moves upwards into the thoracic cavity.

2. The external intercostal muscles, located between the ribs, also relax, causing the ribs to lower.

3. These movements decrease the space in the chest cavity, reducing its volume.

4. As the volume of the chest cavity decreases, the pressure inside it increases.

5. This increased pressure forces air out of the lungs, resulting in exhalation.

So, the relaxation of the diaphragm and external intercostal muscles is a crucial part of the breathing process, specifically in allowing us to exhale.

When the diaphragm and external intercostal muscles relax:

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