Human Anatomy & Physiology
1st Edition
ISBN: 9780805382952
Author: Erin C. Amerman
Publisher: PEARSON
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Chapter 24.4, Problem 6QC
Summary Introduction
To review:
The GFR (glomerular filtration rate), when the afferent arteriole constricts and when it dilates.
Introduction:
Glomerular filtration acts as the crucial gatekeeper of the renal physiology, as it starts the procedure of waste removal. However, it is influenced and regulated by various factors that may arise within the kidney or outside the urinary system. One such physical factor is the alterations in arteriolar diameter.
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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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- Explain the renal autoregulatory mechanisms for keeping the GFR constant despite changes in the mean arterial pressure?arrow_forwardAn infant is born with narrowed renal arteries. What effect will this condition have on urine volume?arrow_forwardWhy is there much greater filtration through glomerular capillaries than through capillaries elsewhere in the body?arrow_forward
- What is the difference between the glomerular capillaries and the peritubular capillaries? How do these relate to afferent and efferent arterioles? Why do the efferent arterioles have oxygenated blood? (The answer isn’t “they are called arterioles, therefore they have oxygenated blood.)arrow_forwardIf the afferent arterioles dilate or constrict, what happens to the golmerular filtration rate?arrow_forwardWhat is the effect of angiotensin II on the glomerular filtration rate? vasoconstricts the afferent arteriole, decreasing the GFR vasoconstricts the afferent arterioe. increasing the GFR vasodilates the afferent arteriole, decreasing the GFR vasodilates the afferent arteriole, increasing the GFRarrow_forward
- Which of the following results in filtration? 1) hydrostatic pressure in the peritubular capillaries 2) hydrostatic pressure in the glomerulus 3) colloid osmotic pressure in the glomerulus 4) colloid osmotic pressure in the peritubular capillariesarrow_forwardWhich is larger, the efferent arteriole or the afferent arteriole?How does the difference affect the function of the glomerulus?arrow_forwardDescribe the three layers comprising the glomerular filtration barrier, and identify podocytes, the capillary endothelium, and the basement membrane. Which layer has the highest barrier function against filtration?arrow_forward
- Under circumstances of having low blood pressure , how does the sympathetic nervous system decrease glomerular filtration rate ? stimulates constriction of the efferent arteriole only stimulates relaxation of the mesangial cells stimulates secretion of erythropoietin stimulates constriction of both the afferent and efferent arteriolesarrow_forwardWhat is micturition and describe the micturition reflex?arrow_forwardIf a drug is administered that causes selective vasodilation of the afferent arteriole, what effect would this have on glomerular filtration rate (GFR)?arrow_forward
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