State true or false.

Is it true that the size of the chest cavity increase during inhalation?

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True

False

answer is A.

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Detailed Solution

The above given statement is correct.
Concept- Lungs is the organ for gaseous exchange.
Respiration has two process that are inhalation and exhalation. During inhalation, the diaphragm contracts and pulled in downward direction. Muscles between ribs contracts and pull upward. This whole can increase the size of thoracic cavity.
Breathing involve inhalation and exhalation, during inhalation we breath in air to breathe in air chest cavity increases to create the pressure difference, this pressure difference lead movement of the atmospheric air into the nostril and during exhalation area of chest cavity decrease.
So, the statement is correctly written.
Hence, option 1 is correct answer.

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