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Mammalian lungs have an enormous number ...

Mammalian lungs have an enormous number of minute alveoli (air sacs). This is to allow

A

more space for incrasing the volume of inspired air

B

more surface area for diffusion of gases

C

more spongy texture for keeping lungs in proper shape

D

more nerve supply to keep the lungs working

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The correct Answer is:
B
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ARIHANT NEET-BREATHING AND EXCHANGE OF GASES -Chapter exercise C (Medical entrances gallery )
  1. Mammalian lungs have an enormous number of minute alveoli (air sacs). ...

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  2. Match the following columns :

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  3. The partial pressure of oxygen in the alveoli of the lungs is

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  4. Lungs do not collapse between breaths and some air always remains in t...

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  5. Name the pulmonary disease in which alveolar surface area involv...

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  6. The volume of air that will remain in the lungs after a normal expirat...

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  7. Which of the following is the most appropirate in normal circumstances...

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  8. The peneumotaxic and repiratory rhythm centres respectively present in

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  9. Which of the following sts of conditions promotes the dissociation of ...

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  10. Assertion (A) In brain stem, pons is called pneumotaxic centre with t...

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  11. When precentrage saturation of haemoglobin with O(2) is plotted again...

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  12. The process of exchange of O(2) from the atmosphere with CO(2) prod...

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  13. Inspiratory capacity of human is equal to

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  14. Approximately seventy percent of carbon dioxide absorbed by the blood ...

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  15. The volume of air that can be breathed in by maximum forced inspiratio...

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  16. The serous membrane which covers the lungs is called

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  17. what is the .(p)O(2) and .(p)CO(2) in the systemic arteries ?

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  18. Choose the wrong statement .

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  19. To generate pressure gradients to facilitate expiration and inspiratio...

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  20. the figure shows a diagrammatic view of human respiratory system with ...

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  21. Oxygen dissociation curve is

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