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Life Processes — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceLife Processes2 Marks
Question
How are inspiration and expiration brought about in human beings?
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Answer

Inspiration and expiration are part of the breathing process in humans. The process of respiration involves two major processes, inspiration and expiration. During inspiration, the inspiratory muscles contract, the diaphragm descends, and the rib cage rises.

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