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The Volume of Air in the Lungs and the Rate at Which It is Exchanged During Inspiration and Expiration Was Measured. the Following Diagram Shows a Group of the Lung Volumes and Capacities.

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Question

The volume of air in the lungs and the rate at which it is exchanged during inspiration and expiration was measured.

The following diagram shows a group of lung volumes and capacities.

Study the diagram carefully and explain briefly the following :

 Tidal volume (TV)

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Solution

 Tidal volume (TV): Air breathed in and out, in a normal quiet breathing is called tidal volume. It is 500 mL.

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Capacities of the Lungs
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Chapter 14: The Respiratory System - Structured/Application/Skill type [Page 149]

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Selina Concise Biology [English] Class 9 ICSE
Chapter 14 The Respiratory System
Structured/Application/Skill type | Q 4.1 | Page 149
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