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During inspiration the diaphragm...

During inspiration the diaphragm

A

expands

B

shows no change

C

contracts and fattens

D

relaxes to become dome-shaped

Text Solution

Verified by Experts

The correct Answer is:
C
Diaphragm is a muscular structure present between abdominal and thoracic cavity in mammals. In normal condition, diaphragm is dome -shaped . During inspiration , it becomes flat due to contraction and during expiration, it becomes relaxed.
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ARIHANT NEET-BREATHING AND EXCHANGE OF GASES -Chapter exercise C (Medical entrances gallery )
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  2. Haemoglobin is having maximum affinity with

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  3. During inspiration the diaphragm

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  4. The oxygen toxicity is related with

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  5. Skin is an accessory orgen of repiration in

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  6. When oxygen supply to tissues is inadequate, the condition

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  7. Large volume of air that a person can expire after a forceful inspirat...

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  8. People who have migrated from the planes to an area adjoining Rohtang ...

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  9. Which one of the following is the correct statement for respiration in...

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  10. After forceful inspiration, the amount of air that can be breathed out...

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  11. Amount of oxygen supplied by 100 ml arterial blood while passing throu...

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  12. the volume of ' anatomical dead space ' air is normally

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  13. Two friends are eating togeather on a dinning table. One of them sudde...

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  14. A large proportion of oxygen is left unused the human blood even after...

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  15. The figure given below shows a small part of human lung where exchange...

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  16. The factor which does not affect the rate of alveolar diffusion is

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  17. Haemoglobin of the human blood forms a stable complex compound with wi...

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  18. If a large number of people are enclosed in a room then

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  19. The expiratory reserve volume will be

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  20. Assertion CO(2) transport occurs very fast through RBCs. Reason : E...

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