The most important function of the diaphragm | vedclass

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Question

(D) The diaphragm is a dome-shaped muscular partition that separates the thoracic cavity from the abdominal cavity.Its primary and most critical funct

Vedclass · Accepted Answer

To aid in ventilation

Vedclass · Answer

(D) The diaphragm is a dome-shaped muscular partition that separates the thoracic cavity from the abdominal cavity.Its primary and most critical function is to facilitate the process of breathing (ventilation).When the diaphragm contracts,it flattens,increasing the volume of the thoracic cavity,which decreases the pressure inside the lungs,allowing air to flow in (inhalation).When it relaxes,it returns to its dome shape,decreasing the thoracic volume and forcing air out (exhalation).Therefore,it is the primary muscle responsible for pulmonary ventilation.

The most important function of the diaphragm in mammals is:

Similar Questions

What happens when the pressure within the pulmonary cavity is higher than the atmospheric pressure?

Choose the correct option:
$(1)$ The volume of gases involved in breathing movements is measured by $Sphygmomanometer / Spirometer$.
$(2)$ Inspiration is initiated by the $relaxation / contraction$ of the diaphragm.

Arrange the given steps of expiration in the sequence of events occurring first:
$I.$ Relaxation of the diaphragm and sternum
$II.$ Reduction of the pulmonary volume
$III.$ Expulsion of air from the lungs
$IV.$ Increase in intra-pulmonary pressure
Choose the correct option.

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.

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