Assertion : Inspiration occurs due to muscula | vedclass

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(D) Inspiration is an active process that occurs due to the contraction of muscles.The diaphragm and external intercostal muscles contract simultaneou

Vedclass · Accepted Answer

If the Assertion is correct but Reason is incorrect.

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(D) Inspiration is an active process that occurs due to the contraction of muscles.The diaphragm and external intercostal muscles contract simultaneously during inspiration.This contraction increases the volume of the thoracic cavity in the antero-posterior and dorso-ventral axes,leading to a decrease in intrapulmonary pressure,which allows air to flow into the lungs.Since the assertion states that inspiration occurs due to muscular relaxation,it is incorrect.However,the reason correctly states that the diaphragm and external intercostal muscles contract during inspiration.Therefore,the assertion is incorrect,but the reason is correct.

Assertion : Inspiration occurs due to muscular relaxation.
Reason : During inspiration,the diaphragm and external intercostal muscle contract simultaneously.

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Assertion : Inspiration occurs due to muscular relaxation.Reason : During inspiration,the diaphragm and external intercostal muscle contract simultaneously.