During inspiration the diaphragm...

During inspiration the diaphragm

A

relaxes to become dome shaped

B

contracts and flattens

C

showns no change

D

expands

Text Solution

Verified by Experts

The correct Answer is:

B

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TRUEMAN BIOLOGY-BREATHING AND EXCHANGE OF GASES -MULTIPLE CHOICE QUESTIONS

Which of the following statements is correct ?
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During expiration, the diaphragm becomes
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During inspiration the diaphragm
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Which one o the following is called inspiratory muscle in mammals?
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During inspiration in mammals the sternum moves
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Which is correct ?
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The contractio of internal intercostal muscles in man causes
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During forced expiration , actively contracting muscles
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With refernce to human repiration which is correct ?
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Rate of breathing in an adult human is
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The breathing rate in a child is
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Which of the following statements best summarises the relationship bet...
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which of the following conditions is responsible for increase in venti...
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The exchange of gases between blood capillaries and alveoli in the lun...
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Volume of air breathed in and out during normal breathing is called
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Tidal volume in human being is
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About 1200 mL of air is always known to remain inside the human lungs ...
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The amount of air remaining in the air passages and alveloi at the end...
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After deep inspiration, capacity of maximum expiration of lung is call...
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Vital capacity of lungs is
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