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Difference between inspiration and expiration.

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Difference between inspiration and expiration.
  • 1 answers

Yogita Ingle 5 years, 10 months ago

Attributes Inhalation Exhalation
What it means Intake of air into the lungs Expelling air out of the lungs
Type Active process Passive process
Size of the chest in the process Increases, expands Decreases, reduces
Diaphragm – role Contracts, gets flattened by moving down Relaxes, moves up forming a dome-shape
Intercostal muscle – role Relaxation of internal intercostal muscles and contraction of external intercostal muscles Contraction of the internal intercostal muscles and relaxation of external intercostal muscles
Lungs – volume Rises to cause inflation Reduces causing deflation
Action it causes Supply of oxygen-rich air to the blood Carbon dioxide is expelled out
Air composition Inhaled air is a mix of oxygen and nitrogen Exhaled air is a mix of nitrogen and carbon dioxide
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