In rabbits,inspiration occurs by the contract | vedclass

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(A) During inspiration,the diaphragm and external intercostal muscles contract simultaneously.This contraction increases the volume of the thoracic ca

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External intercostal muscles and muscles of the diaphragm

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(A) During inspiration,the diaphragm and external intercostal muscles contract simultaneously.This contraction increases the volume of the thoracic cavity in the anteroposterior and dorsoventral axes.The diaphragm contraction flattens it,while the external intercostal muscles lift the ribs and sternum,moving the thoracic walls outward and upward.This creates a negative pressure in the lungs,causing air to rush in.

In rabbits,inspiration occurs by the contraction of:

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

Due to the presence of which structure is the pulmonary ventilation system in humans better developed than in reptiles and birds?

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$(1)$ Inspiration
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Hiccup occurs due to

The normal shape of the diaphragm is

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