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Marrrta [24]
2 years ago
9

When the diaphragm contracts, the size of the thoracic cavity ________, the pressure inside the thoracic cavity ________, and ai

r flows ________ the lungs. decreases; drops; out of decreases; rises; into increases; drops; into increases; drops; out of
Biology
1 answer:
frez [133]2 years ago
7 0

Answer:

decreases; rises; out of

Explanation:

When the diaphragm contracts, the size of the thoracic cavity <u>decreases</u>, the pressure inside the thoracic cavity<u> increases</u>, and air flows <u>out of</u> the lungs.

<em>During the process of breathing out, the diaphragm and the intercostal muscles relax and this leads to a </em><em>decrease</em><em> in the volume of the thoracic cavity. Since there is an inverse relationship between volume and pressure, the decrease in the volume of the thoracic cavity leads to an </em><em>increase</em><em> in its pressure. Consequently, the lung contracts and </em><em>air is forced to leave it.</em>

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