EBK ESSENTIALS OF HUMAN ANATOMY & PHYSI
11th Edition
ISBN: 9780133987010
Author: Marieb
Publisher: VST
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Chapter 15, Problem 2MC
Summary Introduction
Introduction:
GF (Glomerular Filtration) is the primary step of urine production. It is the name given to the collective steps which are used by kidneys to filter out the excess fluids and waste products into the tubules that collect the urine and out of the blood. This way they can get eliminated from the body. The filtration occurs through the apparatus known as the “glomerular capsule”.
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Students have asked these similar questions
Glomerular filtration can be increased by which of the following?
A. Increasing blood flow via afferent arteriole
B. Decreasing blood flow via afferent arteriole
C. Decreasing arterial blood pressure
D. Increasing blood flow via efferent arteriole
The answer is (A) Increasing blood flow via afferent arteriole. Please explain why it is not the other options (B,C,D)
Which direction of movement correctly describes how the term "reabsorption" functions in the nephron?
A.
from the capillaries of the vasa recta into the renal tubule lumen
B.
from the collecting duct into the ureter
C.
from the renal artery into the collecting duct
D.
from the renal tubule lumen into the surrounding interstitial fluid
E.
from the afferent arteriole into the glomerulus
Which one of the following statements is false?a. Blood pressure in the glomerular capillaries is greater than the osmotic pressure exerted by proteins in the plasma within the glomerular capillaries.b. If the osmotic pressure exerted by solutes in the peritubular capillaries is greater than the blood pressure in those capillaries, then water will be reabsorbed.c. Endothelial cells in glomerular capillaries are highly permeable, facilitating filtration of fluid into Bowman’s capsule.d. Constriction of the afferent arteriole is likely to reduce the volume of filtrate appearing in Bowman’s capsule.e. The efferent arteriole carries blood from the glomerular capillaries directly to the renal vein.0.5 pointsQuestion 2Your doctor calls with the results of your urinalysis and tells you that they found proteinuria, the presence of abnormal amounts of protein in your urine sample. What could have caused this?a. Infection and inflammation in the kidney.b. Abnormally high concentration of plasma…
Chapter 15 Solutions
EBK ESSENTIALS OF HUMAN ANATOMY & PHYSI
Ch. 15 - More than one choice may apply. Microscopic...Ch. 15 - Prob. 2MCCh. 15 - Prob. 3MCCh. 15 - Effects of aldosterone include a. increase in...Ch. 15 - 5. Which of the following is dependent on tubular...Ch. 15 - Prob. 6MCCh. 15 - The smallest fluid compartment is the a....Ch. 15 - Prob. 8MCCh. 15 - Prob. 9SAECh. 15 - Prob. 10SAE
Ch. 15 - Prob. 11SAECh. 15 - Identify the main blood vessels that drain blood...Ch. 15 - Prob. 13SAECh. 15 - Prob. 14SAECh. 15 - Prob. 15SAECh. 15 - Prob. 16SAECh. 15 - Prob. 17SAECh. 15 - What is the juxtaglomerular apparatus and what is...Ch. 15 - Prob. 19SAECh. 15 - Prob. 20SAECh. 15 - Prob. 21SAECh. 15 - Prob. 22SAECh. 15 - Prob. 23SAECh. 15 - Prob. 24SAECh. 15 - 25. What sometimes happens when urine becomes too...Ch. 15 - Define incontinence.Ch. 15 - Why is cystitis more common in females?Ch. 15 - 29. What type of problem most commonly affects the...Ch. 15 - Prob. 29SAECh. 15 - Prob. 30CAQCh. 15 - Prob. 31CAQCh. 15 - A young woman has come to the clinic with dysuria...Ch. 15 - 34. What happens to the rate of RBC production in...Ch. 15 - Two physiology students are having a disagreement...Ch. 15 - Mr. Jessup, a 55-year-old man, is operated on for...
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Similar questions
- 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 carrow_forwardThe afferent arteriole delivers blood to the (a) renal artery (b) efferent arteriole (c) renal vein (d) capillaries of the glomerulus (e) peritubular capillariesarrow_forwardWhich 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_forward
- Water and small solutes enter nephrons during ________. a. filtration b. reabsorption c. secretion d. both a and barrow_forwardFatty 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.arrow_forwardA pt was born with a rare genetic disorder in which the proximal tubules of her nephrons express half the number of aquaporins as normal. What will result? A. reduced reabsorption of water, although as much reabsorption of Na+ as is typical? b. reduced reabsorption of water, Na+ and glucose in the proximal tubules? c. Reduced reabsorption of both water and Na+ in equal proportions? D. Reduced reabsorption of all materials in the proximal tubules.arrow_forward
- If blood pressure in the glomerulus increases, then a. net filtration pressure decreases. b. the percentage of substances reabsorbed increases. c. urine production increases. d. renin is released.arrow_forwardWhich of the following would reduce the glomerular filtration rate? Select one: a. Vasodilation of the afferent arteriole b. An increase in osmotic pressure in the Bowman capsule c. A drop in colloid osmotic pressure d. Vasoconstriction of the afferent arteriole e. Vasoconstriction of the efferent arteriolearrow_forwardWhat is the effect on Glomerular Filtration Rate (GFR) if Angiotensin Il is produced due to decreased blood volume? A. Increase B. Normal C. Decrease D. None of the abovearrow_forward
- Analysis of urine is routinely used in medical screening. The presence of glucose in the urine is normally a sign of concern. Why is glucose normally NOT found in urine? A. Glucose is too large to be included in the glomerular filtrate. B. Glucose is too small to be included in the glomerular filtrate. C. Glucose is reabsorbed in the cortex of the kidney. D. Glucose is secreted in the cortex of the kidney.arrow_forwardWhich is/are true concerning the glomerular filtration rate? a. The body maintains a nearly constant GFR despite changes in blood pressure, as long as blood pressure is between 80 and 180 mmHg b. Below 80 mmHg, the GFR is controlled by autoregulation c. GFR is under both intrinsic and extrinsic control d. The juxtaglomerular apparatus has access to information about the osmolarity of the filtrate, as well as the blood pressurearrow_forwardSubstances moving from the blood in the capillaries through tubule cells into the filtrate is called a. Tubular reabsorption b. Tubular secretion c. Tubular filtration d. Fenestrationarrow_forward
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