Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 51.6, Problem 1R
Summary Introduction
To review:
The mechanisms of regulation of glomerular filtration rate (GFR) by the efferent as well as the afferent arterioles along with the control of responses.
Introduction:
GFR is defined as the rate by, which the fluid flows into the glomerulus and further to the Henle’s loop and distal convoluted tubule (DCT) part of the tubule. The process of filtration is hampered, if GFR is not adequate and its regulation is important for the proper functioning of the kidney.
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Life: The Science of Biology
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- Explain the role of sodium-glucose cotransporters in the kidneys. Where are they generally found in the nephron? How do they play a role in diabetes mellitus?arrow_forwardWhat are the effects of ANP on the GFR?arrow_forwardHow different cells of the nephron tubule help to regulate GFR when blood pressure is low?arrow_forward
- Where do ADH and RAAS exert their effects on urine formation in the kidney? Describe their effects.arrow_forwardHow does sympathetic stimulation change GFR? What receptors and NTs are involved?arrow_forwardHow different cells of the nephron tubule help to regulate GFR when blood pressure is too high?arrow_forward
- List the Pathways by which decreased plasma volume leads, via the renin-angiotensin system and aldosterone, to increased Na1 reabsorption by the cortical collecting ducts?arrow_forwardIndividuals with a rare condition called diabetes insipidus do not produce vasopressin. How would urine output of an individual with diabetes insipidus compare with that of a healthy individual?arrow_forward(a) Identify the two reactions that allow the kidney to produce NH4+. (b) Which gluconeogenic precursor is thereby generated? Describe thepathway by which it can be converted to glucose.arrow_forward
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