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Mnemonics: Breathing & exchange of Gases | Biology Class 11 - NEET PDF Download

This document will help you remember important information about Breathing & exchange of Gases in a fun and easy way. Inside, you'll find mnemonics—memory tricks—that will make it easier for you to remember key concepts, examples related to Breathing & exchange of Gases.

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Air Route in Respiratory Tract

Air rich in oxygen is taken in through nose. It travels through the respiratory tract and reaches alveoli for gaseous exchange. In alveoli, oxygen is exchanged with carbon dioxide which then moves out.
Mnemonics: Breathing & exchange of Gases | Biology Class 11 - NEET

Inhalation and Exhalation

During inspiration, diaphragm and external intercostal muscles contract leading to the outward movement of the rib cage, thus increasing the volume of the thoracic chamber. During expiration, diaphragm and external intercostal muscles relax, thus decreasing the volume of thoracic cavity.
Mnemonics: Breathing & exchange of Gases | Biology Class 11 - NEET

Respiratory Volumes and Capacities

Mnemonics: Breathing & exchange of Gases | Biology Class 11 - NEET

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