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In lungs, air is separated from venous b...

In lungs, air is separated from venous blood by

A

1. Squamous epithelium + Tunica externa of blood vessel

B

2. Squamous epithelium + endothelium of blood vessel

C

3. Columnar epithelium + 3 layered wall of blood vessel

D

4. Transitional epithelium + Tunica media of blood vessel

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The correct Answer is:
A
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AAKASH SERIES-BREATHING AND EXCHANGE OF GASES -EXERCISE-I (Exchange of Gases)
  1. Study the following diagram and choose the option that correctly ident...

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  2. Choose the correct statement regarding the partial pressures of respir...

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  3. Identify correct one.

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  4. O2 in the blood passing through 'A' in the following diagram is

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  5. Identify simple squamous epithelium of alveolus from the following dia...

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  6. The difference in the partial pressures of carbon dioxide is very less...

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  7. The rate of diffusion of respiratory gases is affected by:

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  8. Identify the correct match.

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  9. Primary site of pulmonary gas exchange is

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  10. Rate of diffusion of gases is not influenced by

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  11. The partial pressure of O2 in atmospheric air, alveoli, deoxygenated ...

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  12. Choose the correct statement.

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  13. Partial pressure of O2 in alveoli is

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  14. The diffusion membrane is made up of: (A) Thick columnar epithelium ...

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  15. Partial pressure of CO2 in alveoli, oxygenated blood, deoxygenated blo...

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  16. After taking a long breath, we can hold the breath as long as

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  17. In lungs, air is separated from venous blood by

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  18. Correct one of the following regarding partial pressure (mm in Hg) of ...

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  19. The CO(2) content by volume, in the atmospheric air is about

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  20. Which one of the following vertebrate organs receives the oxygenated b...

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