The reason that the concentration of oxygen is more in expired air than alveolar air. Introduction: Air enters the lungs and reaches trachea. After this, it moves to bronchi and then to bronchioles. Finally, air enters alveoli from which it is supplied to all parts of the body through blood vessels. The air that is removed out of the body is called expired air. However, the air that is present inside the alveolus is known as alveolar air.

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Chapter 17, Problem 28RQ

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To determine: The reason that the concentration of oxygen is more in expired air than alveolar air.

Introduction: Air enters the lungs and reaches trachea. After this, it moves to bronchi and then to bronchioles. Finally, air enters alveoli from which it is supplied to all parts of the body through blood vessels. The air that is removed out of the body is called expired air. However, the air that is present inside the alveolus is known as alveolar air.

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