Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Textbook Question
Chapter 24, Problem 7MC
Tubular reabsorption (a) of glucose and many other substances is a Tm-limited active transport process, (b) of chloride is always linked to the passive transport of Na+, (c) is the movement of substances from the blood into the nephron, (d) of sodium occurs only in the proximal tubule.
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During the maximal water diuresis, the ratio of the tubular fluid to plasma osmolarity is greater than 1.0 in which of the following?
(A) The bend of the loop of Henle
(B). Bowman Space
(C) The collecting duct
(D) The distal renal tubule
(E) The proximal convoluted renal tubule
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 blood
This diagram illustrates which of the following
Choose from the following:
(A) secretion of hydrogen via Na+/H+ exchange ions by the proximal convoluted tubule
(B) reabsorption of bicarbonate ions by intercalated cells (A) in the collecting duct
(C) secretion of H+ by H+K+/ATPase pumps in the intercalated cells (A) in the collecting duct
(D) A and B
(E) all of the above
Chapter 24 Solutions
Anatomy & Physiology (6th Edition)
Ch. 24.1 - Prob. 1CYUCh. 24.1 - From inside to outside, list the three layers of...Ch. 24.1 - The lumen of the ureter is continuous with a space...Ch. 24.2 - Name the tubular components of a nephron in the...Ch. 24.2 - What are the structural differences between...Ch. 24.2 - What type of capillaries are the glomerular...Ch. 24.2 - Prob. 19CYUCh. 24.3 - In the kidneys, tubular secretion of a substance...Ch. 24.4 - Extrinsic and intrinsic controls of GFR serve two...Ch. 24.4 - Calculate net filtration pressure given the...
Ch. 24.4 - Which of the pressures that determine NFP is...Ch. 24.5 - In which part of the nephron does most...Ch. 24.5 - How does the movement of Na+ drive the...Ch. 24.5 - MAKING conections Primary and secondary active...Ch. 24.6 - List several substances that are secreted into the...Ch. 24.7 - Describe the special characteristics of the...Ch. 24.7 - Under what conditions is ADH released from the...Ch. 24.8 - What would you expect the normal clearance value...Ch. 24.8 - What are the three major nitrogenous wastes...Ch. 24.9 - A kidney stone blocking a ureter would interfere...Ch. 24.9 - What is the trigone of the bladder, and which...Ch. 24.9 - Name the three regions of the male urethra.Ch. 24.9 - How does the detrusor respond to increased firing...Ch. 24.9 - MAKING connections Compare the structure and...Ch. 24 - The lowest blood concentration of nitrogenous...Ch. 24 - The glomerular capillaries differ from other...Ch. 24 - Damage to the renal medulla would interfere first...Ch. 24 - Which is reabsorbed by the proximal convoluted...Ch. 24 - Glucose is not normally found in the urine because...Ch. 24 - Filtration at the glomerulus is inversely related...Ch. 24 - Tubular reabsorption (a) of glucose and many other...Ch. 24 - If a freshly voided urine sample contains...Ch. 24 - Conditions such as diabetes mellitus and...Ch. 24 - Which of the following is/are true about ADH? (a)...Ch. 24 - What is the importance of the perirenal fat...Ch. 24 - Trace the pathway a creatinine molecule takes from...Ch. 24 - Explain the important differences between blood...Ch. 24 - Describe the mechanisms that contribute to renal...Ch. 24 - Prob. 5SAQCh. 24 - Describe what is involved in active and passive...Ch. 24 - Explain how the peritubular capillaries are...Ch. 24 - Explain the process and purpose of tubular...Ch. 24 - How does aldosterone modify the chemical...Ch. 24 - Explain why the filtrate becomes hypotonic as it...Ch. 24 - How does urinary bladder anatomy support its...Ch. 24 - Define micturition and describe the micturition...Ch. 24 - Lets return to Kyle Boulard, whom we met in the...Ch. 24 - Lets return to Kyle Boulard, whom we met in the...Ch. 24 - Lets return to Kyle Boulard, whom we met in the...Ch. 24 - Lets return to Kyle Boulard, whom we met in the...Ch. 24 - Lets return to Kyle Boulard, whom we met in the...Ch. 24 - Lets return to Kyle Boulard, whom we met in the...Ch. 24 - Lets return to Kyle Boulard, whom we met in the...
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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_forwardExplain how the kidneys help to maintain the balance of acids and bases in extracellular fluid.arrow_forwardTubular transport maximum (Tm) is (a) the maximum rate at which a substance in the filtrate can be reabsorbed into the blood from the renal tubules (b) the most rapid rate at which urine can be transported through the ureter (c) the maximum rate at which a substance can be reabsorbed by theglomerulus (d) the maximum rate at which a substance can pass through the loop of Henle (e) the maximum amount of a substance that can be secreted into the filtratearrow_forward
- Indicate whether the following statements are true or false :(a) Micturition is carried out by a reflex.(b) ADH helps in water elimination, making the urine hypotonic.(c) Protein-free fluid is filtered from blood plasma into the Bowman’s capsule.(d) Henle’s loop plays an important role in concentrating the urine.(e) Glucose is actively reabsorbed in the proximal convoluted tubule.arrow_forwardThe part of the nephron whose epithelial cells contain the longest microvilli and the most mitochondria is the (a) glomerular capsule (podocytes), (b) proximal tubule, (c) thin segment, (d) distal tubule.arrow_forwardDrugs that increase urine flow (diuretic drugs) are often employed in the treatment of hypertension (high blood pressure) or other disease states. Three physiological categories of such drugs are ones that (i) function as loop diuretics, (ii) inhibit the action of aldosterone, and (iii) block Na+ channels in the collecting ducts. Explain why each of these categories would be expected to increase Na+ excretion and urine flow.arrow_forward
- Which of the following does not contribute to the high salt concentration in the interstitial fluid of the kidney medulla? (a) active transport of sodium from the upper part of the ascending limb (b) diffusion of salt from the ascendinglimb of the loop of Henle (c) reabsorption of salt from various regions of Bowman’s capsule (d) counterflow of fluid through the two limbs of the loop of Henle (e) diffusion of urea out of the collecting ductarrow_forwardIdentify all of the following that are functions of the kidney: (a) maintain blood pH; (b) regulate blood ion concentrations; (c) regulate blood volume and blood pressure; (d) eliminate wastes, some hormones, and certain drugs from the blood; (e) release renin; (f) release erythropoietin; and (g) stimulate the final step in calcitriol formation.arrow_forwardA 37-year-old man has hypertension caused by aldosterone-secreting neoplasm. Which of the following is the likely effect on renal function? A) Decreased reabsorption of phosphate by distal tubule (B). Decreased secretion of H+ by collecting duct by collecting duct (C) Decreased secretion of K+ by collecting duct (D) Increased reabsorption of Na+ by the collecting duct (E) Increased reabsorption of Na+ by the proximal tubulearrow_forward
- The high osmolarity of the renal medulla is maintained by all of the following except (A) active transport of salt from the upper region of the ascending limb. (B) the spatial arrangement of juxtamedullary nephrons. (C) diffusion of urea from the collecting duct. (D) diffusion of salt from the descending limb of the loop of Henle.arrow_forwardThe tubuloglomerular feedback mechanism responds to an increase in A) urine production by signaling for a decrease in urine production through the hormone ADH. B) glomerular capillary hydrostatic pressure by signaling for afferent arterioles to constrict and increase filtration rate. C) NaCl concentration in tubular fluid by signaling for afferent arteriole constriction with 4ocal chemical messengers. D) systemic blood pressure by signaling for a decrease in heart rate through blood-borne hormones.arrow_forwarda)Name the two factors that trigger the release of ADH (vasopressin). b) What happens to plasma osmolarity when there is excessive water loss through sweating and it is not replaced? c) Describe the renal regulation of potassium, where is K+, what is the hormone that is responsible for the secretion of K+, the name of the cells, and the location in the nephron where the fine-tuning of K+ occurs.arrow_forward
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