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When there is no air in initial bronchio...

When there is no air in initial bronchioles, they does not collapse. It is due to `:`

A

Presence of Lecithin

B

Presence of incomplete cartilagenous rings

C

Presence of complete cartilagenous rings

D

Presence of mucous

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The correct Answer is:
B
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MOTION-BREATHING AND EXCHANGE OF GASES-Exercise 2
  1. Common passage for food and air

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  2. The function of conducting part in respiratory system of human is :-

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  3. When there is no air in initial bronchioles, they does not collapse. I...

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  4. Which of the following steps not involved in respiration :-

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  5. Inspiration can occur , when -

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  6. Contraction of diaphragm increases the volume of thoracic chamber in t...

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  7. Which muscles contract during normal expiration: A-Diaphragm, ...

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  8. Total volume of air a person can expire after a normal inspiration is ...

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  9. Which of the following factor can affect the rate of diffusion of gase...

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  10. Which of the following is correct?

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  11. What is true about diffusion capacity.

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  12. Which of the following statement is true:

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  13. Binding of oxygen with haemoglobin is primarily related to :

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  14. In which the following factors can interfere in binding of O(2) with h...

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  15. The conditions which are favourable for the formation of oxyhaemoglob...

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  16. Which of the following statement // s is // are correct ? A- A high...

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  17. Which of the following centre can moderate the functions of the respir...

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  18. A chemosentive area is situated adjacent to respiratory rhythm centre....

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  19. Respiratory rhythm centre is present in :-

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  20. Chronic disorder in which alveolar wall are damaged due to which respi...

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