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Ribcage contracts and the air pressure in the lungs becomes lower therefore oxygen from outside where there is a higher air pressure gets pulled into the lungs and into the alveoli

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When the diaphragm contracts the what?

When the diaphragm contracts in the body, then you exhale


How the diaphragm helps the lungs?

Your diaphragm contracts and expands when you breath. When the diaphragm contracts, air rushes into the lungs. When the diaphragm relaxes, air is exhaled.


When the diaphragm contracts the chest cavity is?

Depression results when the muscle fibers of the diaphragm contracts.


When you inhale the what contracts?

Diaphragm.


Do you inhale when the diaphragm contracts?

Yes.


When the diaphragm contracts it causes?

Inhalation


When you breathe in does the diaphragm do?

When you breathe in, your diaphragm contracts. This makes the diaphragm move lower and increases the area in your lungs.


What happens to the diaphragm when a person breathes in?

It contracts (and moves downward).


What is the changes in size of thoracic cavity during the contraction and relaxation of diaphragm?

When the Diaphragm contracts, it is pulled down, and is pulled back up when it relaxes.Also, when you inhale, it contracts. When you exhale, it relaxes.


What moves upwards and downwards when the diaphragm contracts and flattens?

The lungs move downwards when the diaphragm contracts and flattens, allowing air to be drawn into the lungs.


Are you breathing in or out when the diaphragm contracts?

contracts means to come together or to close. Try breathing. Does your diaphragm get smaller when you inhale or exhale? ********************************************************** Hint: it contracts when you inhale..


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.