Define respiration. What are its components? [Class 10]
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In physiology, respiration is the movement of oxygen from the outside environment to the cells within tissues, and the removal of carbon dioxide in the opposite direction. ... Ventilation refers to the in and out movement of air of the lungs and perfusion is the circulation of blood in the pulmonary capillaries.
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Explanation:
The movement of oxygen from outside environment to the cells within the tissues, and the removal of carbon dioxide in the opposite direction.
Components of respiration are:
- nose
- mouth
- throat (pharynx)
- voice box (larynx)
- windpipe
- large airways (bronchi)
- small airways (bronchioles)
- lungs
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