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

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