Examination Questions and Answers in Basic Anatomy and Physiology

by Martin Caon
Edition:
ISBN13: 978-981-10-2332-3
ISBN10:
1878

Medicine

Title
Chapter: 13.2 / Q: 9 Boyle’s law may be stated as: “when the volume of an enclosed gas expands, its pressure decreases”. Thus the pressure in our lungs will:
Chapter: 13.2 / Q: 10 Boyle’s law may be stated: Provided that the temperature does not change, the volume of a fi xed amount of gas decreases as its pressure increases (and vice versa). Which statement concerning the pressure of the air in the lungs is consistent with Boyle’s law?
Chapter: 13.2 / Q: 11 A statement of Boyle’s law is ‘the volume of a fi xed amount of gas is inversely proportional to the pressure of the gas, as long as temperature does not change’. This means that
Chapter: 13.2 / Q: 12 Boyle’s law states that pressure multiplied by volume is a constant value. Hence which of the following statements is correct?
Chapter: 13.2 / Q: 13 If the partial pressure of oxygen in the atmosphere was halved, what effect would this have on the amount of oxygen that would now dissolve in the alveolar fl uid? It would
Chapter: 13.2 / Q: 14 At a height of 3000 m above sea level atmospheric pressure is 30 kPa less than at sea level. A consequence of this lower pressure is that less oxygen will dissolve in the alveolar fl uid. The reason for this is that:
Chapter: 13.2 / Q: 15 If the partial pressure of oxygen in the air contained in the alveoli of the lungs is 14 kPa, then the partial pressure of oxygen dissolved in the alveolar fl uid will be:
Chapter: 13.2 / Q: 16 Suppose that the partial pressure of oxygen in the alveoli is doubled from its normal value of 14 kPa. What would then be the partial pressure of oxygen dissolved in the blood leaving the alveoli?
Chapter: 13.2 / Q: 17 One of the reasons that the mixture of gases in the air contained in the alveoli of the lungs, differs from atmospheric air is that alveolar air is:
Chapter: 13.2 / Q: 18 If the pressure between the visceral pleura of the lungs and the parietal pleura of the thoracic cage is −6 mmHg, then

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