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The volume of thoracic chamber increases...

The volume of thoracic chamber increases in dorso-ventral axis due to the contraction of

A

contraction of external inter-costal muscles

B

relaxation of external inter-costal muscles

C

relaxation of diaphragm

D

contraction of diaphragm

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The correct Answer is:
D
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AAKASH SERIES-BREATHING AND EXCHANGE OF GASES -EXERCISE-I (Mechanism of Breathing)
  1. On an average a healthy human breaths times per hour

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  2. The instrument that helps in clinical assessment of pulmonary function...

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  3. Amount of air expelled from the lungs during the quiet breathing per o...

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  4. Volume of air remaining in the lungs even after a forcible expiration ...

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  5. Volume of air that will remain in the lungs after normal expiration is...

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  6. RV + VC =

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  7. Identify the incorrect match about lung volumes.

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  8. For the occurrence of inspiration intra pulmonary pressure should be

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  9. The volume of thoracic chamber increases in dorso-ventral axis due to ...

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  10. Volume of air either inspired or expired during normal respiration is

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  11. Correct one of the following regarding respiratory capacities is

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  12. Maximum volume of air a person can breathe in after a forced expiratio...

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  13. Expiratory reserve volume of a healthy person is

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  14. During inhalation diaphragm

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  15. A person suffers punctures in his chest cavity in an accident, without...

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  16. Mark the true statement among the following with reference to normal b...

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  17. Mark the correct pair of muscles involved in the normal breathing in h...

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

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  19. A person breathes in some volume of air by forced inspiration after ha...

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  20. From the following relationships between respiratory volumes and capac...

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