Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Textbook Question
Chapter 25, Problem 5MC
Two main substances regulated by the influence of aldosterone on the kidney tubules.
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The reabsorption of water, Cl–, and glucose by the PCT islinked to the reabsorption of Na+, but in three very different ways. Contrast these three mechanisms
Renal tubules cannot reabsorb HCO3–; yet HCO3–concentration in the tubular fluid falls while in the blood plasma itrises. Explain this apparent contradiction.
Regulated reabsorption of Na+ at the DCT
occurs under the influence of the hormone
A
renin
B
ΕΡΟ
C
ADH
D
aldosterone
Chapter 25 Solutions
Anatomy & Physiology (6th Edition)
Ch. 25.1 - Which do you have more of, extracellular or...Ch. 25.1 - What is the major cation in the ECF? In ICF? What...Ch. 25.1 - If you eat salty pretzels without drinking, what...Ch. 25.2 - Prob. 6CYUCh. 25.2 - ADH, by itself, cannot reduce an increase in...Ch. 25.2 - For each of the following, state whether it might...Ch. 25.3 - Nathan has Addisons disease (insufficient...Ch. 25.3 - Prob. 9CYUCh. 25.3 - Prob. 10CYUCh. 25.4 - Define acidemia and alkalemia.
Ch. 25.4 - What are the bodys three major chemical buffer...Ch. 25.4 - Joanne, a diabetic patient, is at the emergency...Ch. 25.5 - Reabsorption of HCO3 is always tied to the...Ch. 25.5 - Prob. 14CYUCh. 25.5 - Prob. 15CYUCh. 25.5 - Prob. 16CYUCh. 25.6 - Which two abnormalities in plasma are key features...Ch. 25.6 - How do the kidneys compensate for respiratory...Ch. 25 - Body water content is greatest in (a) infants, (b)...Ch. 25 - Potassium, magnesium, and phosphate ions are the...Ch. 25 - Sodium balance is regulated primarily by control...Ch. 25 - Prob. 4MCCh. 25 - Two main substances regulated by the influence of...Ch. 25 - Two substances regulated by parathyroid hormone.Ch. 25 - Two substances secreted into the proximal...Ch. 25 - Prob. 8MCCh. 25 - Prob. 9MCCh. 25 - Prob. 10MCCh. 25 - Prob. 11MCCh. 25 - The pH of blood varies directly with (a) HCO3, (b)...Ch. 25 - In an individual with metabolic acidosis, a clue...Ch. 25 - Name the body fluid compartments, noting their...Ch. 25 - Prob. 2SAQCh. 25 - Prob. 3SAQCh. 25 - Prob. 4SAQCh. 25 - Prob. 5SAQCh. 25 - Explain how the chemical buffer systems resist...Ch. 25 - Explain the relationship of the following to renal...Ch. 25 - Mr. Heyden, a somewhat stocky 72-year-old man, is...Ch. 25 - Mr. Heyden, a somewhat stocky 72-year-old man, is...Ch. 25 - Mr. Heyden, a somewhat stocky 72-year-old man, is...Ch. 25 - Mr. Heyden, a somewhat stocky 72-year-old man, is...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Those with chronic renal failure often have issues with anemia because the kidney cannot secrete sufficient levels of renin.arrow_forwardDrugs that increase urine flow (diuretic drugs) are oftenemployed in the treatment of hypertension (high blood pressure)or other disease states. Three physiological categories of suchdrugs are ones that (i) function as loop diuretics, (ii) inhibitthe action of aldosterone, and (iii) block Na+ channels in thecollecting ducts. Explain why each of these categories wouldbe expected to increase Na+ excretion and urine flow. (Hint:Rereading the section on hormones at the end of Chapter 28might prove helpful.)arrow_forwardDescribe the functions of hornones – ADH and Aldostrone – in urinary systemarrow_forward
- KIDNEY FUNCTION IN REGULATION OF RENAL BLOOD FLOW, FLUIDS VOLUME AND REGULATION OF ENDOCRINEarrow_forwardGlucose is normally 100% reabsorbed, such that no glucose is excreted in the urine. Explain why a person with diabetes and a blood glucose level of 450 mg/dL will have glucose excreted in his urine.arrow_forwardTrue or false When a substance gets actively reabsorbed, ATP is spent to power the movement of that substance without any carrier molecule from the nephron back into the blood stream. (explain why)arrow_forward
- How could an antagonistic drug for aldosterone receptors on the basolateral surface of the DCT/collecting duct cells result inhyperkalemia? (Also be thinking about a separate hormone, ADH: What would an ADH inhibitor to do to urine volume and how would that effect the osmolarity of the blood?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_forwardExplain why the total renal blood flow can be measured by the renal plasma clearance of PAH.arrow_forward
- Explain in your own words when Renin release is stimulated by the kidneyarrow_forwardContrast the effects of aldosterone and ADH on water reabsorption in the kidney. How are they similar and how do they differ?arrow_forwarddiabetes mellitus refers to the production of sweet urine- explain how and why this occurs. what other, related renal sympton occurs with respect to urine formation?arrow_forward
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