Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Textbook Question
Chapter 24.3, Problem 16CYU
In the kidneys, tubular secretion of a substance usually results in its excretion as well. Explain the difference between excretion (defined in the chapter The Human Body: An OrientationChapter 1) and tubular secretion.
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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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- 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 ascending limb of the loop of Henle (c) reabsorption of salt from various regions of Bowmans capsule (d) counterflow of fluid through the two limbs of the loop of Henle (e) diffusion of urea out of the collecting ductarrow_forwardWhy is excretion important in order to achieve osmotic balance?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_forward
- As a person ages, nephron tubules lose some of their ability to concentrate urine. What is the effect of this change?arrow_forwardDescribe (and label on a diagram) the structures of a nephron (including associated blood vessels) and give the functions of each structure.arrow_forwardThe Human Nephron and Associated Blood Vessels capillaries efferent arteriole afferent arteriole Structure 2 Structure 1 Structure 3 Structure 4 to renal vein to urinary bladder Which of the following rows correctly identifies the structures of the nephron numbered 1 to 4 on the diagram above? Row Structure 1 Structure 2 Structure 3 Structure 4 glomerulus collecting duct loop of Henle distal tubule collecting duct Bowman's capsule loop of Henle distal tubule proximal tubule collecting duct glomerulus loop of Henle Bowman's proximal tubule collecting duct loop of Henle Capsulearrow_forward
- Blood vessels travel in parallel to provide fresh blood to all tissue. However, one of the exceptions is the two capillary beds of the kidneys located in series. Blood flow occurs as follows: afferent arteriole- glomerulus- efferent arteriole - the peritubular capillaries. How does this series of blood flow benefit the kidneys and homeostasis?arrow_forwardDrinking seawater cannot prevent death by dehydration. What would result if humans attempted to alleviate their dehydration by drinking seawater? justify your answer by describing kidney physiology. why wouldn't reflexes, in response to dehydration, fully compensate and what does this illustrate about the force allowing kidneys to retain water under nromal conditions?arrow_forwardAlthough the kidneys are probably best known as filtration organs, tubular reabsorption (the second step of urine formation in a nephron) actually reclaims molecules that have already been filtered from the blood. Describe the tubular reabsorption process, including the structures and molecules involved, and explain why these molecules need to be reabsorbed. please helparrow_forward
- Which row below indicates a MISMATCH between the processes and the functions of the kidney? Row Process Function excretion of metabolic wastes rids the body of urea and uric acid maintaining the water-salt balance helps regulate blood volume maintaining the acid-base balance rids the body of nitrogenous wastes regulating salt balance in the blood reabsorption of various ions including Na+arrow_forwardNephron Describe the phsiology of the nephron. Explain the function of each structure and how the composition of the urine changes from the Bowmans capsule to the collecting duct. How does the function of nephron differ when the animal has an excess of water, as opposed to when it is dehydrated? How do hormones help regulate the physiology of the nephron? Why is the nephron so highly vascularized?arrow_forwardIn the kidneys, tubular secretion of a substance usually results in its excretion as well. Explain the difference between excretion and tubular secretion.arrow_forward
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