Exhalation is the process of expulsion of air | vedclass

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(A) Exhalation (expiration) is the process by which air is expelled from the lungs.During exhalation:$(i)$ The diaphragm relaxes and moves upward to i

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(A) Exhalation (expiration) is the process by which air is expelled from the lungs.During exhalation:$(i)$ The diaphragm relaxes and moves upward to its dome-shaped position.$(ii)$ The external intercostal muscles relax,causing the ribs and sternum to move downward and inward,which reduces the volume of the thoracic cavity.$(iii)$ This increase in pressure inside the lungs relative to atmospheric pressure forces air out of the lungs.Looking at the provided figures,Figure $A$ shows the diaphragm moving upward and the ribs moving inward/downward,which correctly represents the process of exhalation.

Exhalation is the process of expulsion of air through the respiratory tract. Which of the following figures illustrates the process of exhalation?

Similar Questions

Choose the correct option:
$(1)$ The volume of gases involved in breathing movements is measured by $Sphygmomanometer / Spirometer$.
$(2)$ Inspiration is initiated by the $relaxation / contraction$ of the diaphragm.

During forced expiration,which muscles actively contract?

If a person breathes with maximal effort but with his nose and mouth closed,the alveolar pressure can be decreased to as low as

Which of the following statements is incorrect regarding the human lungs?

State whether the given statements are true or false.
$I.$ Ventilation in humans is an active process.
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Choose the correct option.

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