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(A) Step $1$: The diagram represents the process of inspiration.Step $2$: During inspiration, the diaphragm undergoes contraction, which causes it to

Vedclass · Accepted Answer

Relaxation of the diaphragm.

Vedclass · Answer

(A) Step $1$: The diagram represents the process of inspiration.Step $2$: During inspiration, the diaphragm undergoes contraction, which causes it to flatten, thereby increasing the volume of the thoracic cavity in the antero-posterior axis.Step $3$: Simultaneously, the external intercostal muscles contract, causing the ribs and sternum to move outwards and upwards, increasing the volume of the thoracic cavity in the dorso-ventral axis.Step $4$: Since the diaphragm contracts during inspiration, the statement 'Relaxation of the diaphragm' is incorrect.

Select the incorrect option regarding the process of inspiration as represented in the diagram.

Similar Questions

$I.$ Intra-pulmonary pressure remains less than the atmospheric pressure.
$II.$ There is negative pressure in the lungs compared to the atmospheric pressure.
In which of the above two situations does inspiration take place? Choose the correct option.

Explain the process of inspiration under normal conditions.

Which of the following activities does not take place during pulmonary respiration in amphibians (e.g.,frogs)?

In a minute, a normal healthy human adult respires: (in $\times$)

In rabbits,inspiration occurs by the contraction of:

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