[ANIMAL PHYSIOLOGY] Na* ions are actively transported out of the tubules to help set up the countercurrent multiplier. Which of the following are sites of active Na* ion transport in the nephron? Şelect one: Oa. Proximal tubule, thick ascending limb of the loop of Henle O b. Thin ascending limb of the loop of Henle, distal tubule С. Collecting duct, descending limb of the loop of Henle O d. Thin ascending limb of the loop of Henle, thick ascending limb of the loop of Henle е. Thick ascending limb of the loop of Henle, collecting duct

[ANIMAL PHYSIOLOGY] Na* ions are actively transported out of the tubules to help set up the countercurrent multiplier. Which of the following are sites of active Na* ion transport in the nephron? Şelect one: Oa. Proximal tubule, thick ascending limb of the loop of Henle O b. Thin ascending limb of the loop of Henle, distal tubule С. Collecting duct, descending limb of the loop of Henle O d. Thin ascending limb of the loop of Henle, thick ascending limb of the loop of Henle е. Thick ascending limb of the loop of Henle, collecting duct

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter48: Osmoregulation And Disposal Of Metabolic Wastes

Section: Chapter Questions

Problem 7TYU: Which of the following does not contribute to the high salt concentration in the interstitial fluid...

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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.
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 duct
Plasma fluid filtered into Bowmans capsule flows directly into the ________. a. renal artery c. distal tubule b. proximal tubule d. loop of Henle
Figure 41.8 Loop diuretics are drugs sometimes used to treat hypertension. These drugs inhibit the reabsorption of Na+ and Cl- ions by the ascending limb of the loop of Henle. A side effect is that they increase urination. Why do you think this is the case?
Kidneys return most of the water and small solutes back to blood by way of ___ . a. glomerular filtration b. tubular reabsorption c. tubular secretion d. both a and b
As a person ages, nephron tubules lose some of their ability to concentrate urine. What is the effect of this change?
The afferent arteriole delivers blood to the (a) renal artery (b) efferent arteriole (c) renal vein (d) capillaries of the glomerulus (e) peritubular capillaries
Water and small solutes enter nephrons during ________. a. filtration b. reabsorption c. secretion d. both a and b
Blood pressure forces water and small solutes out of blood and into nephrons during ________. a. glomerular filtration c. tubular secretion b. tubular reabsorption d. both a and c
Kidneys return most of the water and small solutes back to blood by way of ___ . a. glomerular filtration b. tubular reabsorption c. tubular secretion d. both a and b
Figure 41.6 Which of the following statements about the nephron is false? The collecting duct empties into the distal convoluted tubule. The Bowman’s capsule surrounds the glomerulus. The loop of Henle is between the proximal and distal convoluted tubules. The loop of Henle empties into the distal convoluted tubule.
Fatty tissue holds the kidneys in place. Extremely rapid weight loss may cause this tissue to shrink so that the kidneys slip from their normal position. On rare occasions, the slippage can put a kink in one or both ureters and block urine flow. Suggest what might then happen to the kidneys.