The diagram above shows which phenomenon of r | vedclass

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(C) The diagram shows the diaphragm moving upwards (dome-shaped) and the rib cage moving inwards and downwards. This indicates a decrease in the thora

Vedclass · Accepted Answer

Expiration: Relaxation in diaphragm and external intercostal muscles

Vedclass · Answer

(C) The diagram shows the diaphragm moving upwards (dome-shaped) and the rib cage moving inwards and downwards. This indicates a decrease in the thoracic volume,which leads to an increase in thoracic pressure,causing air to be expelled from the lungs. This process is known as expiration. Expiration occurs when the diaphragm and external intercostal muscles relax,returning the diaphragm and sternum to their normal positions.

The diagram above shows which phenomenon of respiration?

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Assertion : Inspiration occurs due to muscular relaxation.
Reason : During inspiration,the diaphragm and external intercostal muscle contract simultaneously.

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

Select the correct option for the given figure (assuming the figure shows expiration).

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