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during inspiration...

during inspiration

A

Diaphragm and external intercostal muscles contract

B

Diaphragm relaxes and external intercostal muscles contract

C

Both diaphragm and external intercostal muscles relax

D

Diaphragm and internal intercostal muscles contract

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The correct Answer is:
A
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The volume of air in the lungs and the rate at which it is exchanged during inspiration and expiration was measured. The following diagram shows a group of the lung volumes and capacities : Study the diagram carefully and explain briefly the following: (a) Tidal volume (b) Inspiratory reserve volume (c) Expiratory reserve volume (d) Vital capacity (e) Residual volume

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Which respiratory muscles are used in inspiration.

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AAKASH INSTITUTE ENGLISH-MOCK TEST 07 ZOOLOGY-EXAMPLE
  1. which of the following is true regarding the cartilage of the larynx?

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  2. A: true vocal cord are located above the false vocal cords and partici...

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  3. during inspiration

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  4. the breathing rate is an adult humans is

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  5. In earthworms, the respiration takes place through

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  6. Expiratory capacity is

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  7. What is functional residual capacity?

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  8. residual volume of lungs in humans is normally

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  9. which of the following cannot be measured by spirometer? (i)FRC. ...

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  10. Abdominal muscles play a role in breathing mainly during

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  11. which of the following statements is/ are correct regarding normal exp...

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  12. Name the primary site of exchange of gases in our body?

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  13. value of pO2 in deoxygenated blood is equal to value of pCo2 in 1) sy...

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  14. which of the following is an incorrect statement regarding exchange of...

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  15. Which of the following factors is not favourable for the formation of ...

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  16. In which form is maximum amount of oxygen transported in human blood f...

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  17. under normal physiological conditions 100 ml of venous blood returns h...

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  18. which of the following is not correct according to Bohr's effect?

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  19. How many molecules of oxygne can associate with a molecule of haemoglo...

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  20. Which of the following causes a leftward shift in the oxygen dissociat...

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