EP HUMAN BIOLOGY-MODIFIED MASTERING
8th Edition
ISBN: 9780134326436
Author: Johnson
Publisher: PEARSON CO
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Question
Chapter 15, Problem 4CR
Summary Introduction
To review:
The location of vasa recta and the tubular sections of the nephron that they serve.
Introduction:
The vasa recta are the capillary network that is responsible for providing blood to the medulla and are greatly permeable toward the solute and water. The two tubular regions of the nephron that they serve are the loop of the Henle and the collecting duct.
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Diagram the anatomic relationship between the peritubular capillaries/ vasa recta and tubular elements of the nephron.
Describe the special characteristics of the descending and ascending limbs of the nephron loop that cause the formation of the medullary osmotic gradient.
Explain why the filtrate becomes hypotonic as it flows through the ascending limb of the nephron loop. Also explain why the filtrate at the bend of the nephron loop (and the interstitial fluid of the deep portions of the medulla) is hypertonic.
Chapter 15 Solutions
EP HUMAN BIOLOGY-MODIFIED MASTERING
Ch. 15 - How do you think we should allocate cadaveric...Ch. 15 - Prob. 2QCCh. 15 - Should the government set up a national registry...Ch. 15 -
1. Describe in general terms the kidneys' role in...Ch. 15 - Prob. 2CRCh. 15 - Prob. 3CRCh. 15 - Prob. 4CRCh. 15 - Prob. 5CRCh. 15 - Prob. 6CRCh. 15 - Indicate the primary stimulus for the secretion of...
Ch. 15 - Describe the function of the hormone aldosterone.Ch. 15 - Prob. 9CRCh. 15 - Prob. 10CRCh. 15 - Prob. 1TYCh. 15 - Three of the choices below are organ systems...Ch. 15 -
3. The________ detoxifies ammonia, producing...Ch. 15 - Prob. 4TYCh. 15 - Prob. 5TYCh. 15 - Prob. 6TYCh. 15 - Protein is generally not found in the urine...Ch. 15 - Prob. 8TYCh. 15 -
9. Which of the following would not be found in...Ch. 15 - Which of the following is most responsible for the...Ch. 15 - In tubular absorption, which of the following...Ch. 15 - Prob. 12TYCh. 15 - Prob. 13TYCh. 15 - Prob. 14TYCh. 15 - All of the following statements about UTIs are...Ch. 15 - Prob. 1AWKCh. 15 - Prob. 2AWKCh. 15 - Prob. 3AWKCh. 15 - The kidneys filter a large volume of fluid,...Ch. 15 - Why aren't children already potty trained–able to...Ch. 15 - A possible complication of a strep throat...
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- Describe (and label on a diagram) the structures of a nephron (including associated blood vessels) and give the functions of each structure.arrow_forwardAs 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_forwardWater and small solutes enter nephrons during ________. a. filtration b. reabsorption c. secretion d. both a and barrow_forward
- As a person ages, nephron tubules lose some of their ability to concentrate urine. What is the effect of this change?arrow_forwardExplain how the kidneys help to maintain the balance of acids and bases in extracellular fluid.arrow_forwardDescribe the countercurrent multiplier mechanism in terms of the permeabilities of the different parts of the nephron and collecting system structures, and indicate the end result of functioning of the countercurrent multiplier. Describe the countercurrent exchanger mechanism.arrow_forward
- State differences between cortical and juxtamedullary nephrons.arrow_forwardDescribe the differences in nephron activity based on the structural differences within the tubule system.arrow_forwardCompare the important physiological functions of the capillaries arising from the efferent arterioles of cortical nephrons to those arising from the efferent arterioles of juxtamedullary nephrons.arrow_forward
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