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Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
ISBN: 9781337794909

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Chapter
Section
BuyFindarrow_forward

Cardiopulmonary Anatomy & Physiolo...

7th Edition
Des Jardins + 1 other
ISBN: 9781337794909
Textbook Problem

At high altitude, the True _______ False ________

overall ventilation-

perfusion ratio

improves.

Summary Introduction

To review:

Whether the statement, “At a high altitude, the overall ventilation–perfusion ratio improves.” is true or false.

Introduction:

At a high altitude, the barometric pressure drops below the pressure of water vapor, and hence, the tissue fluids start to vaporize. Ventilation is one of the most prominent type of acclimatization at a high altitude. The ventilation–perfusion ratio is described as the ratio of air to the amount of blood reaching the alveoli per minute.

Explanation

Enhanced ventilation at a higher altitude is matched by a higher pulmonary perfusion and cardiac output. There is an equivalent increase in the ventilation, pulmonary perfusion, and cardiac output of an individual at a higher altitude...

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