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: 19 Boyle’s law states that the pressure in an enclosed gas is inversely related to its volume. Which of the following descriptions is compatible with Boyle’s law and with respiratory physiology?
Chapter: 13.2 / Q: 20 Given that de-oxygenated blood entering the alveolar capillaries has an oxygen partial pressure of 42 mmHg and a carbon dioxide partial pressure of 47 mmHg, while the partial pressures of O 2 and CO 2 in the alveolar air are 103 mmHg?
Chapter: 13.2 / Q: 21 What are the conditions under which O 2 diffuses from the blood plasma into red blood cells and attaches to haemoglobin? When partial pressure of oxygen dissolved in plasma is
Chapter: 13.2 / Q: 22 After an inhalation, the partial pressure of O 2 in the alveoli is 104 mmHg and of CO 2 is 40 mmHg. What will be the concentration of these gases dissolved in blood in the capillaries leaving the alveoli?
Chapter: 13.2 / Q: 23 Some partial pressures for oxygen (in mmHg) in different parts of the respiratory system are given below. Given that atmospheric air has O 2 at 160 mmHg, which ones are reasonable values?
Chapter: 13.2 / Q: 24 Blood entering the capillaries of the alveoli has dissolved CO 2 at 46 mmHg and is separated from air in the alveoli, which contains CO 2 at a partial pressure of 40 mmHg, by the respiratory membrane. What will be the concentration of dissolved CO 2 of the blood capillaries leaving the alveoli?
Chapter: 13.2 / Q: 25 If arterial blood entering the lung has pCO 2 = 46 mmHg & alveolar air has pCO 2 = 40 mmHg then
Chapter: 13.2 / Q: 26 If the partial pressure of oxygen in the alveolar air is 104 mmHg, approximately what will be the concentration of dissolved oxygen in the blood leaving the pulmonary capillaries?
Chapter: 13.2 / Q: 27 Recall Boyle’s law applied to the lungs. Which of the following would occur as air pressure in the lungs increases?
Chapter: 13.2 / Q: 28 If the pO 2 of oxygen in the alveoli is 104 mmHg and in the blood in alveolar capillaries is 40 mmHg, while the pCO 2 in the alveoli 40 mmHg and in the blood is 46 mmHg, which of the following will happen?

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