Select correct answer and give reasons-During inspiration air passes into lungs due toa). Increased volume of thoracic cavityb). Fall in pressure inside the lungsc). Increase in the volume of thoracic cavity and fall in lung pressure.d). Muscular expansion of lungs

Select correct answer and give reasons-During inspiration air passes i

1.	Select correct answer and give reasons-During inspiration air passes into lungs due toa). Increased volume of thoracic cavityb). Fall in pressure inside the lungsc). Increase in the volume of thoracic cavity and fall in lung pressure.d). Muscular expansion of lungs
Answer» Ans is (c) INCREASE in the VOLUME of thoracic cavity and fall in LUNG pressure.

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Select correct answer and give reasons-During inspiration air passes into lungs due toa). Increased volume of thoracic cavityb). Fall in pressure inside the lungsc). Increase in the volume of thoracic cavity and fall in lung pressure.d). Muscular expansion of lungs

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