Human Anatomy & Physiology
1st Edition
ISBN: 9780805382952
Author: Erin C. Amerman
Publisher: PEARSON
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Textbook Question
Chapter 24, Problem 16CYR
The GFR may be estimated by measuring the rate at which certain substances are removed from the blood, which is known as:
a. renal clearance.
b. plasma creatinine.
c. glomerular hydrostatic pressure.
d. inulin estimation.
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Auto-Regulation of GFR is possible because the glomerular capillaries are
located between:
46.
A. An arteriole and two venules
B. An arteriole and three venules
C. An arteriole and a large lymph vessel
D. An arteriole and another arteriole
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 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 beneficial
Chapter 24 Solutions
Human Anatomy & Physiology
Ch. 24.1 - What are the organs of the urinary system?Ch. 24.1 - 2. What are the basic functions of the kidneys?
Ch. 24.2 - Prob. 1QCCh. 24.2 - 2. What are the three regions of the kidney, and...Ch. 24.2 - Prob. 3QCCh. 24.2 - Trace the sequence of blood flow through the...Ch. 24.2 - Prob. 5QCCh. 24.2 - Prob. 6QCCh. 24.2 - Trace the pathway filtrate takes through the...Ch. 24.3 - Prob. 1QC
Ch. 24.3 - 2. How do tubular reabsorption and tubular...Ch. 24.4 - Prob. 1QCCh. 24.4 - Prob. 2QCCh. 24.4 - Prob. 3QCCh. 24.4 - 4. What is the GFR?
Ch. 24.4 - Prob. 5QCCh. 24.4 - Prob. 6QCCh. 24.4 - 7. How does tubuloglomerular feedback affect the...Ch. 24.4 - Prob. 8QCCh. 24.4 - Prob. 9QCCh. 24.4 - Prob. 10QCCh. 24.4 - How does the sympathetic nervous system affect the...Ch. 24.5 - Prob. 1QCCh. 24.5 - Prob. 2QCCh. 24.5 - Prob. 3QCCh. 24.5 - What is obligatory water reabsorption?Ch. 24.5 - How do the permeabilities of the two limbs of the...Ch. 24.5 - Prob. 6QCCh. 24.5 - Prob. 7QCCh. 24.5 - Prob. 8QCCh. 24.6 - Prob. 1QCCh. 24.6 - Prob. 2QCCh. 24.6 - Prob. 3QCCh. 24.6 - Prob. 4QCCh. 24.6 - 5. What three factors allow the kidney to produce...Ch. 24.6 - 6. How is concentrated urine produced?
Ch. 24.8 - 1. What is the normal composition of urine?
Ch. 24.8 - Prob. 2QCCh. 24.8 - 3. What is renal clearance, and what is it used...Ch. 24.9 - Prob. 1QCCh. 24.9 - 2. What are the functions of the ureters and...Ch. 24.9 - Prob. 3QCCh. 24.9 - Prob. 4QCCh. 24.9 - Prob. 5QCCh. 24 - What are the four main organs of the urinary...Ch. 24 - 2. Which of the following is not a physiological...Ch. 24 - Mark the following statements as true or false. If...Ch. 24 - Prob. 4CYRCh. 24 - Prob. 5CYRCh. 24 - Which of the following substances would pass...Ch. 24 -
7. Fill in the blanks: Glomerular hydrostatic...Ch. 24 - Fill in the blanks for the following statements:...Ch. 24 - Which of the following is false about the GFR? a....Ch. 24 - The route by which substances are reabsorbed by...Ch. 24 -
11. Mark the following statements as true or...Ch. 24 - Dilute urine is produced when decreased levels of...Ch. 24 - Prob. 13CYRCh. 24 - Prob. 14CYRCh. 24 - Prob. 15CYRCh. 24 - 16. The GFR may be estimated by measuring the rate...Ch. 24 - Prob. 17CYRCh. 24 - Prob. 1CYUCh. 24 - Prob. 2CYUCh. 24 - Prob. 3CYUCh. 24 - Why must the kidneys establish a concentration...Ch. 24 - 1. Drugs that treat hypertension, or high blood...Ch. 24 - Prob. 2AYKACh. 24 - 3. Deana is a 4-year-old girl with a rare genetic...Ch. 24 - 4. Explain how each of the drugs in question 1...Ch. 24 - 5. What might it mean if you found a high...
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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_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_forwardA urinalysis reveals that the patients urine contains glucose, hemoglobin, and white blood cells (pus). Are any of these substances abnormal in urine? Explain.arrow_forward
- 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_forwardWhich of the following factors oppose (s) filtration from the glomerulus? a. Plasma oncotic pressure b. Hydrostatic pressure in the glomerular (Bowman’s) capsule c. Plasma hydrostatic pressure d. Both A and B e. Both B and Carrow_forwardGlomerular colloid osmotic pressure (GCOP) is created by:- a. systemic blood pressure. b. filtrate in the capsular space. c. proteins such as albumin in the blood. d. fluids in the blood plasma.arrow_forward
- Maria is 8 months pregnant. When she goes to her doctor for her checkup, the nurse takes her blood pressure. It is unusually high: 200/100 mm Hg. The nurse also collects a urine sample and detects elevated levels of protein in her urine. 1. What can account for the protein in her urine? a. Protein is a normal component of urine and is no cause for concern. b. Excessive amounts of plasma proteins are filtered at the renal corpuscle. c. Tubular cells produce additional protein in response to the elevated blood pressure. d. The tubular cells have exocytosed protein into the tubular fluid.arrow_forwardAn increase in renal plasma flow without an increase in GFR will likely result in:a. Diuresisb. Antidiuresisc. Antinatriuresisd. No change of urine outputarrow_forwardWhich of the following will decrease filtration at the glomerulus? ( check all that apply) A. Low colloid osmotic pressure B. Low capsular pressure C. A relatively large diameter of theefferent arterioles compared to theafferent arteriole. D. Increased number of podocytes at theglomerulusarrow_forward
- Which force(s) involved in glomerular filtration oppose(s) filtration from the glomerulus into Bowman's capsule? A. plasma osmotic pressure (especially of non-filterable plasma proteins) B. glomerular capillary blood pressure C. Bowman's capsule hydrostatic pressure D. Both of answer choices A and B (but not C) correctly answer the question. E. Both of answer choices A and C (but not B) correctly answer the question.arrow_forwardThe amount of sodium in Bowman's capsule can be doubled by: A. Doubling of glomerular hydrostatic pressure B. Doubling of Glomerular oncotic pressure C. Doubling of Bowman's capsule hydrostatic pressure D. Doubling of GFR OE. Doubling of urine outputarrow_forwardThe result of renal autoregulation is(are): A. Minimize loss of water in urine after an increase of cardiac output B. Minimize decrease of ECF after an increase of cardiac output C. Minimize effect of increased systemic pressure on urine output OD. Minimize loss of sodium in urine after an increase of cardiac output OE. All of the abovearrow_forward
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