anatomy homework 2 - Place the following structures of the...

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Place the following structures of the respiratory tree in the order in which air passes through them. 1. secondary bronchi 2. bronchioles 3. primary bronchi 4. alveoli 5. terminal bronchioles 4, 1, 2, 3, 5 1, 3, 5, 2, 4 3, 1, 2, 5, 4 3, 1, 5, 2, 4 1, 3, 2, 5, 4 The chloride shift occurs when carbonic acid is formed. bicarbonate ions leave the red blood cells. hydrogen ions enter the red blood cells. hydrogen ions leave the red blood cells. bicarbonate ions enter the red blood cells. A typical value for intrapleural pressure is ________ mm Hg. +6 0 -6 -3 +3 Poiseuille's law is summarized this way: R L/r 4 P = 2T/r PV = nRT
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P 1 V 1 = P 2 V 2 Harry suffers from cystic fibrosis and frequently has periods where he can hardly breathe. The problem is the result of constriction of the trachea. collapse of one or both lungs. laryngospasms that occur in response to a toxic substance produced by the epithelial cells. thick secretions that exceed the ability of the mucus elevator to transport them. inflammation of the bronchi. The lung pathology most likely to result from certain kinds of heart disease is fibrotic lung disease. asthma. emphysema. lung cancer. pulmonary edema. Surfactant protects the surface of the lungs. is not found in healthy lung tissue. phagocytizes small particulate matter. replaces mucus in the alveoli. helps prevent the alveoli from collapsing. Which is NOT considered to be a primary function of the respiratory system? vocalization protection against pathogens
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gas exchange regulation of pH balance regulation of water balance Carbon dioxide is more soluble in water than oxygen. To get the same amount of oxygen to dissolve in plasma as carbon dioxide, you would have to decrease the temperature of the plasma. increase the partial pressure of oxygen. increase the rate of plasma flow through the lungs. decrease the partial pressure of nitrogen. The variables of oxygen consumption, cardiac output, and blood content are unrelated. True During normal expiration, elastic recoil of stretched muscles helps return the thorax to its resting volume, the internal intercostal muscles are required, and the abdominal muscles become involved. elastic recoil of stretched muscles helps return the thorax to its resting volume and the internal intercostal muscles are required. the internal intercostal muscles are required. the abdominal muscles become involved. elastic recoil of stretched muscles helps return the thorax to
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its resting volume. Histamine's primary role in the respiratory system is as a bronchoconstrictor. vasoconstri ctor. bronchodilator. surfactant . vasodilator. Active expiration is produced by contraction of diaphragm only.
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