PRINCIPLES OF HUMAN PHYS.-W/ACCESS (LL)
6th Edition
ISBN: 9780134494661
Author: STANFIELD
Publisher: PEARSON
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Textbook Question
Chapter 18, Problem 7E
Which of the following would occur if mean arterial pressure increased from 95 mm Hg to 125 mm Hg?
a. Glomerular filtration rate would increase because of the increased glomerular capillary hydrostatic pressure
b. Glomerular filtration rate would decrease because of the increased Bowman's capsule hydrostatic pressure.
c. Glomerular filtration rate would not change because Of autoregulation.
d. Glomerular filtration rate would not change because of activation of the sympathetic nervous system.
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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 of the following would increase the rate of glomerular filtration?
A)increasing the concentration of protein in the blood. B) decreasing the volume of blood plasma.
C) increasing the arterial pressure of the blood . D) decreasing the osmotic pressure of the blood .
Which of these forces opposes filtration from the glomerulus
a. Plasma osmotic pressure
b. Fluid pressure in Bowmans capsule
c. Plasma hydrostatic pressure
d. Two of the presented alternatives are correct
Chapter 18 Solutions
PRINCIPLES OF HUMAN PHYS.-W/ACCESS (LL)
Ch. 18.2 -
Describe the symptoms that indicate the presence...Ch. 18.2 - What treatments are available for removing or...Ch. 18.2 - Prob. 3CTQCh. 18.2 - Prob. 18.1.1QCCh. 18.2 - Prob. 18.1.2QCCh. 18.2 - Prob. 18.1.3QCCh. 18.2 - Prob. 18.1.4QCCh. 18.3 - Indicate whether the GFR will tend to rise or fall...Ch. 18.3 - Prob. 18.2.2QCCh. 18.3 -
Is the control of afferent and efferent...
Ch. 18.3 -
Describe the barriers for reabsorption and...Ch. 18.3 -
Describe the general mechanism of water...Ch. 18.3 -
Define the terms transport maximum and renal...Ch. 18.3 - Prob. 1CTQCh. 18.3 - Prob. 2CTQCh. 18.3 - Prob. 3CTQCh. 18.5 - Prob. 1CTQCh. 18.5 - Prob. 2CTQCh. 18.5 - Prob. 3CTQCh. 18.5 - Prob. 18.4.1QCCh. 18.5 - Prob. 18.4.2QCCh. 18.5 - Prob. 18.4.3QCCh. 18.5 -
Describe the innervation of the bladder,...Ch. 18 - Prob. 1ECh. 18 -
Which of the following is not one of the...Ch. 18 - Which type of specialized junction connects...Ch. 18 - Which of the following does not favor a large...Ch. 18 - Prob. 5ECh. 18 - Prob. 6ECh. 18 - Which of the following would occur if mean...Ch. 18 - Prob. 8ECh. 18 - Prob. 9ECh. 18 - Prob. 10ECh. 18 -
Micturition occurs in response to
a Relaxation...Ch. 18 - The (ureter/urethra) carries urine from the...Ch. 18 - Urinary excretion is the elimination of urine from...Ch. 18 -
The (afferent/efferent) arteriole carries blood...Ch. 18 - Prob. 15ECh. 18 - Prob. 16ECh. 18 - Prob. 17ECh. 18 - Prob. 18ECh. 18 - Prob. 19ECh. 18 - Prob. 20ECh. 18 - Prob. 21ECh. 18 - Prob. 22ECh. 18 -
Substances that are reabsorbed move into the...Ch. 18 - An increase in the flow rate through the macula...Ch. 18 -
Glucose reabsorption occurs primarily in the...Ch. 18 -
Describe the pathway of filtrate flow from the...Ch. 18 - Explain why the glomerular filtration rate does...Ch. 18 - Prob. 28ECh. 18 - Explain the concept of transport maximum. Why does...Ch. 18 - Prob. 30ECh. 18 - Prob. 31ECh. 18 - Prob. 32ECh. 18 - Prob. 33ECh. 18 -
Compare the responses of the smooth muscle in...
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- Which of the following does not contribute to the process of filtration? (a) active transport by epithelial cells lining renal tubules (b) large surface area for filtration (c) low permeability of glomerular capillaries (d) high hydrostatic blood pressure in glomerular capillaries (e) podocytesarrow_forwardBlood 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_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
- 2. Glomerular filtration is directly proportional to A. Blood cell size B. Hydrostatic pressure C. Osmotic pressure D. The patient’s fluid intakearrow_forwardWhich 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…arrow_forwardWhat causes the large osmotic force due to proteins in the peritubular capillary? A. The secretion of proteins into the interstitial space by the tubule cells. B. The prevention of proteins being filtered at the glomerulus. C. The high capsular pressure in the glomerulus. D. A and Barrow_forward
- How would damage to the renal capillaries resulting in an increase in protein filtration and urinary excretion affect net filtration pressure in the systemic circulation? a. Increase capillary reabsorption due to an increase in interstitial colloid osmotic pressure b. Increase capillary filtration due to an increase in interstitial hydrostatic pressure c. Increase capillary filtration due to a decrease in blood colloid osmotic pressure d. Increase capillary reabsorption due to increased blood hydrostatic pressurearrow_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_forwardIf the tubular maximum is exceeded, then a. the carrier mechanism will work harder. b. the excess will be reabsorbed in the bladder. c. the excess will appear in the urine. d. its blood concentration will increase.arrow_forward
- Which of the following describes why a very low GFR is not beneficial? a. Too many substances including wastes will be reabsorbed due to the reduced flow b. Filtered substances will pass by too quickly to be adequately reabsorbed c. There will be insufficient secretion of substances in the peritubular capillaries d. A low GFR is always beneficialarrow_forwardSeveral pharmacological agents have been shown to lower the pressure of the filtrate inside the lumen of nephrons. What affect will this have? a hydrostatic pressure of fluid in the Bowman’s capsule increases, GFR increases b hydrostatic pressure of fluid in the Bowman’s capsule decreases, GFR decreases c hydrostatic pressure of fluid in the Bowman’s capsule increases, GFR decreases d hydrostatic pressure of fluid in the Bowman’s capsule decreases, GFR increasesarrow_forwardThe glomerulus differs from other capillaries in the body in that it ________. a) is impermeable to most substances b) is the site for reabsorption of 99% of the filtrate c) has a blood pressure much higher than other capillaries d) has a basement membranearrow_forward
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