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It decreases, and air goes into the lung passages. You inhale.

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13y ago
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5mo ago

When the diaphragm contracts, it moves downward, increasing the volume of the thoracic cavity. This leads to a decrease in intraalveolar pressure, causing air to flow in from the atmosphere to equalize the pressure, resulting in inhalation.

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Q: What happens to the intraalveolar pressure when the diaphragm contracts?
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What happens when intraalveolar pressure exceeds atmostpheric pressure?

lung at rest


What happens when the air pressure in your chest cavity when your diaphragm contracts?

It decreases, allowing air to flow in.


What happens to the diaphragm when a person breathes in?

It contracts (and moves downward).


How do you breathe using the diaphragm?

When you take a breath, the diaphragm contracts and when it does, it drops down. This increases the size of the thoracic cavity. Air pressure is now lower in it than outside. Air moves from a high pressure to a low pressure. Air rushes in and the reverse happens when the diaphragm relaxes.


What happens to the diaphragm exhalation?

When breathing in, or inhaling, the diaphragm contracts, or tightens. When exhaling, or breathing out, the diaphragm expands, or loosens.


When the diaphragm contracts what happens to the size of the chest cavity?

It increases.


What happens during exhalation the diaphragm?

When breathing in, or inhaling, the diaphragm contracts, or tightens. When exhaling, or breathing out, the diaphragm expands, or loosens.


When a person exhales what happens to the diaphragm?

The diaphragm muscles contract and relax pulling the diaphragm down and then releasing it. When we inhale, our diaphragm muscles contracts and flattens. When we exhale, they relax and arch upwards.


When intraalveolar pressure exceeds atmospheric pressure what happens?

If intraalveolar pressure exceeds atmospheric pressure, air will flow out of the lungs due to the pressure gradient. This process is known as exhalation or expiration. It allows the lungs to get rid of carbon dioxide and regulate the levels of gases in the body.


What happens to the diaphragm when you inhale and when you exhale?

When the diaphragm contracts and moves lower, the chest cavity enlarges, reducing the pressure outside the lungs. To equalize the pressure, air enters the lungs. When the diaphragm relaxes and moves back up, the elasticity of the lungs and chest wall pushes air out of the lungs.


What happens to the abdomen during inspiration?

The diaphragm contracts and so your abdomen comes out during inspiration.


What happens to the size of the thoracic cavity when the diaphragm contracts?

it gets smaller in size forcing the air out of the lungs