Volume of thoracic chamber increases in anter | vedclass

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Question

(A) During inspiration,the contraction of the diaphragm muscle causes it to become flat and lowered,thereby increasing the volume of the thoracic cavi

Vedclass · Accepted Answer

Contraction of diaphragm and external intercostal muscles respectively

Vedclass · Answer

(A) During inspiration,the contraction of the diaphragm muscle causes it to become flat and lowered,thereby increasing the volume of the thoracic cavity in the antero-posterior axis.The contraction of the external intercostal muscles lifts the ribs and sternum up and outward,causing an increase in the volume of the thoracic cavity in the dorso-ventral axis,i.e.,the backward-forward direction.

Volume of thoracic chamber increases in antero-posterior and dorso-ventral axis in rabbit by

Similar Questions

What happens to the diaphragm muscles during the process of inspiration?

What happens to the volume of the pulmonary cavity when there is an increase in the volume of the thoracic chamber?

Explain the mechanism of breathing with neat labelled sketches.

$I.$ 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.

Expiration occurs due to

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