EBK HUMAN PHYSIOLOGY
7th Edition
ISBN: 9780133983401
Author: Silverthorn
Publisher: YUZU
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Textbook Question
Chapter 20, Problem 17CC
In hypokalemia, the intercalated cells of the distal nephron reabsorb K+ from the tubule lumen. What happens to blood pH as a result?
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Describe a physiological stimulus for the secretion of aldosterone. What effect would this have on sodium and potassium reabsorption and secretion in the distal nephron?
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Explain why the differential permeability of specific sections of the renal tubule is necessary to produce concentrated urine?
Chapter 20 Solutions
EBK HUMAN PHYSIOLOGY
Ch. 20 - Does the apical membrane of a collecting duct cell...Ch. 20 - Prob. 2CCCh. 20 - A scientist monitoring the activity of...Ch. 20 - If vasopressin increases water reabsorption by the...Ch. 20 - Experiments suggest that there are peripheral...Ch. 20 - Prob. 6CCCh. 20 - Prob. 7CCCh. 20 - In Figure 20.9b, what forces cause Na+ and K+ to...Ch. 20 - Prob. 9CCCh. 20 - Laboratory values for ions may be reported as...
Ch. 20 - A man comes to the doctor with high blood...Ch. 20 - Map the pathways through which elevated renin...Ch. 20 - Why is it more efficient to put ACE in the...Ch. 20 - Incorporate the thirst reflex into Figure 20.8.Ch. 20 - CO2+H2OH++HCO3(6) In equation 6, the amount of...Ch. 20 - Why is ATP required for H+ secretion by the H+-K+...Ch. 20 - In hypokalemia, the intercalated cells of the...Ch. 20 - What is an electrolyte? Name five electrolytes...Ch. 20 - Prob. 2RQCh. 20 - Prob. 3RQCh. 20 - List the receptors that regulate osmolarity, blood...Ch. 20 - How do the two limbs of the loop of Henle differ...Ch. 20 - Prob. 6RQCh. 20 - Prob. 7RQCh. 20 - Prob. 8RQCh. 20 - Write out the words for the following...Ch. 20 - Prob. 10RQCh. 20 - Prob. 11RQCh. 20 - Prob. 12RQCh. 20 - Prob. 13RQCh. 20 - Prob. 14RQCh. 20 - Prob. 15RQCh. 20 - When ventilation increases, what happens to...Ch. 20 - Prob. 17RQCh. 20 - Figures 20.15 and 20.18a show the respiratory and...Ch. 20 - Explain how the loop of Henle and vasa recta work...Ch. 20 - Prob. 20RQCh. 20 - Prob. 21RQCh. 20 - Name the four main compensatory mechanisms for...Ch. 20 - Prob. 23RQCh. 20 - Compare and contrast the terms in each set: a....Ch. 20 - Prob. 25RQCh. 20 - Prob. 26RQCh. 20 - Prob. 27RQCh. 20 - Hannah, a 31-year-old woman, decided to have...Ch. 20 - Prob. 29RQCh. 20 - The Henderson-Hasselbalch equation is a...Ch. 20 - Prob. 31RQCh. 20 - Osmotic diuresis refers to the loss of additional...
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- As the text noted, two-thirds of the water and solutes that the body reclaims by reabsorption in nephrons occurs in the proximal tubule. Proximal tubule cells have large numbers of mitochondria and demand a great deal of oxygen. Explain why.arrow_forwardWhy is excretion important in order to achieve osmotic balance?arrow_forwardExplain how the kidneys help to maintain the balance of acids and bases in extracellular fluid.arrow_forward
- Explain what happens to Na+ concentration in the nephron when GFR increases.arrow_forwardWhich of the following does not contribute to the process of filtration? (a) active transport by epithelial cells lining renal tubules (b) large surface area for filtration (c) low permeability of glomerular capillaries (d) high hydrostatic blood pressure in glomerular capillaries (e) podocytesarrow_forwardA urinalysis reveals that the patients urine contains glucose, hemoglobin, and white blood cells (pus). Are any of these substances abnormal in urine? Explain.arrow_forward
- The process of hydrogen ion secretion in the proximal convoluted tubule occurs via which of the following mechanisms? Choose from the following: (A) hydrogen ions diffuse out of the glomerular filtrate of the proximal convoluted tubule, through extracellular fluid and into the peritubular blood (B) carbon dioxide diffuses into the proximal convoluted tubule cell from peritubular capillary blood; undergoes a chemical reaction to form carbonic acid; dissociates into hydrogen and bicarbonate ions; the hydrogen ion diffuses into the glomerular filtrate of the proximal convoluted tubule (C) hydrogen ions diffuse out of the peritubular capillary blood, through extracellular fluid and into the filtrate of the proximal convoluted tubule (D) carbon dioxide diffuses into the proximal convoluted tubule cell from the glomerular filtrate; undergoes a chemical reacdtion to form carbonic acid; dissociates into hydrogen and bicarbonate ions; the hydrogen ions diffuse into the peritubular bloodarrow_forwardHow Did The Addition Of Aldosterone Affect Urine Volume(compared with baseline)? Can the reabsorption of solutes influence of water reabsorption in the nephron? Briefly explain.arrow_forwardthe explanation states that renal defects in the regulation of potassium and the acid-base balance can cause metabolic ACIDosis and hypokalemia. Which part/s of the nephron are most responsible for adjustments to pH and K+?arrow_forward
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