15 Questions
What is the volume of air that remains in the respiratory passage and lungs after the most forceful expiration?
Residual volume
What is the sum of tidal volume, inspiratory reserve volume, and expiratory reserve volume?
Vital capacity
What is the ratio of the volume of air that can be forcefully exhaled in 1 second to the full amount of air that can be exhaled with effort in a complete breath?
FEV1/FVC
Which of the following is NOT a pulmonary volume?
Inspiratory capacity
What is the sum of expiratory reserve volume and residual volume?
Functional residual capacity
What is the primary location where gas exchange occurs in the human body?
Alveoli
What is the term for the force exerted by gas molecules on the surfaces with which they are in contact?
Partial pressure
What is the primary direction of oxygen transport in the human body?
From lungs to tissues
What is the term for the process of increasing pulmonary ventilation?
Hyperpnea
What is the ratio used to distinguish between obstructive and restrictive lung conditions?
FEV1/FVC >= 70%
What is the effect of a decrease in pH on the oxygen binding affinity of adult haemoglobin?
Decreased oxygen binding affinity
What is the term for the variation in the effectiveness of gas exchange due to the mismatch between ventilation and perfusion in the lungs?
Ventilation-perfusion mismatch
Which of the following statements is true about the effect of 2,3-diphosphoglycerate on adult haemoglobin?
It decreases oxygen binding affinity
What is the effect of hyperventilation on the blood pH?
It increases the blood pH
What is the effect of ageing on the respiratory system?
It decreases the vital capacity and gas exchange
This quiz covers the respiratory system, including obstructive and restrictive lung conditions, alveolar gas exchange, and external respiration. Learn about the laws of diffusion and how they apply to the respiratory process.
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