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(D) The presence of a large number of alveoli significantly increases the surface area available for the exchange of gases. In mammalian lungs,the alv

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Efficient system for the exchange of large amounts of residual air.

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(D) The presence of a large number of alveoli significantly increases the surface area available for the exchange of gases. In mammalian lungs,the alveolar ducts open into numerous alveoli,which are the primary sites of gas exchange. This structural arrangement ensures an efficient system for the exchange of large volumes of air,including the residual air,by maximizing the contact area between the air and the pulmonary capillaries.

What does the presence of a large number of alveoli around the alveolar duct opening into the bronchioles in mammalian lungs indicate?

Similar Questions

The figure given below shows a small part of human lung where exchange of gases takes place. Select the option which represents labelled part ($A, B, C$ or $D$) correctly identified along with its function.

Analogy type question:
$(1)$ Atmospheric air enters: Inspiration :: Alveolar air released out: ..........
$(2)$ $O_2$ in alveoli: $104 \, mm \, Hg$ :: $CO_2$ in alveoli: ..........

The $pCO_2$ of inspired air is . . . . . . $mm \ Hg$ during external respiration.

Which structure of the lungs is directly involved in $O_2 / CO_2$ exchange between air and blood capillary?

The diffusion membrane of the lungs is made up of which of the following layers?

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