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The thoracic diaphragm, where its contraction assists inhalation and relaxation assists exhalation plays a main role in altering the lung's volume and air pressure inside, contributing to the process of respiration. Many other muscles are involved in both raising and lowering the ribcage, and any stomach muscles involved assist in exhalation.

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8y ago
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12y ago

The diaphragm is involved in breathing; it is enclosed in the rib structure.

When one inhales: volume increases and the pressure decreases (diaphragm moves down)

When one exhales: volume decreases and the pressure increases (diaphragm moves up)

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8y ago

The diaphragm is the main muscle of respiration.
The diaphragm is a muscle located beneath the lungs. When it contracts, it expands the lungs causing air to flow into the new space. When it relaxes, air is pushed out as space in the lungs decreases.

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13y ago

The diaphragm is the main muscle responsible for breathing, however there are also many accessory muscles that contribute, as well.

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12y ago

lungs

The diaphragm plays a very important role in breathing, you even have some muscles that are between the ribs that help when you take in extreamly deep breaths

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12y ago

The Lungs play a main role in breathing, the diaphragm also plays an important rule in breathing.

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12y ago

the diaphragm and inter coastal muscles.

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14y ago

deltoid

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Q: Which muscle plays a role in breathing?
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The muscle that plays the main role is the diaphragm.:)


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the diaphragm play an important role in breathing. hope it helped....


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