Which of the following statements is false re | vedclass

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(B) Inspiration is the process by which atmospheric air is drawn into the lungs.For air to move into the lungs,the pressure inside the lungs (intra-pu

Vedclass · Accepted Answer

There is a positive pressure in the lungs with respect to the atmosphere.

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(B) Inspiration is the process by which atmospheric air is drawn into the lungs.For air to move into the lungs,the pressure inside the lungs (intra-pulmonary pressure) must be less than the atmospheric pressure,creating a negative pressure gradient.Option $A$ is true because inspiration requires lower intra-pulmonary pressure.Option $C$ is true as it describes the same condition as $A$.Option $D$ is true because the contraction of the diaphragm increases the volume of the thoracic cavity,which decreases the intra-pulmonary pressure.Option $B$ is false because if there were positive pressure in the lungs relative to the atmosphere,air would move out of the lungs (expiration) rather than into them.

Which of the following statements is false regarding the process of inspiration?

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