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Pressure gradient between the lungs and ...

Pressure gradient between the lungs and atmosphere is generated by
a-diaphragm, b-external intercostal muscles, c- internal intercostal muscles, d-ribs

A

a and b

B

a and c

C

a,b and c

D

a,b,c and d

Text Solution

Verified by Experts

The correct Answer is:
D
The diaphragm and a specialised set of muscles external and internal intercostals between the ribs, help in generation of pressure gradients.
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A2Z-BREATHING AND EXCHANGE OF GASES-Section A: Topicwise Questions Topic 2 : Mechanism Of Breathing (respiratory Volumes And Capacities)
  1. Fill in the blanks : Breathing involves two stages. ...1... dunng v...

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  2. Ptessure within the lungs is called

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  3. Pressure gradient between the lungs and atmosphere is generated by ...

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  4. Inspiration is initiated by the contraction of

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

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  6. The contraction of .......muscles lifts up the ribs and the sternum ca...

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  7. External and internal intercostal muscles are present in

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  8. Normal breathing rate of a healthy human is

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  9. In breathing movements, air volume can be estimated by

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  10. Additional volume of air, a person can expire by a forcible expiration...

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  11. Total volume of air a person can inspire after a normal expiration is ...

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  12. the amount of vloume of air that can be inspired / expired normally is...

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  13. The volume of air present in the lungs after forceful expiration is ca...

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  14. Volume of air that remain in the lungs after a normal expiration is ca...

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

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  16. Total volume of air accommodated in the lungs at the end of a forced i...

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  17. Additional volume of air a person can inspire by a forcible inspiratio...

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  18. Match the columns I and II, and choose the correct combination from th...

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  19. Recognise the figure and find out the correct matching

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  20. Vital capacity, the maximum volume of air a person can inhale, is meas...

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