What is the effect of reducing afferent arteriole radius on filtration rate? What is the effect...
What is the effect of reducing afferent arteriole radius on filtration rate? What is the effect of reducing efferent arteriole radius on filtration rate? Explain the physiology behind these effects.
Homework Answers
Constriction of afferent arteriols reduces renal blood flow, reduces glomerular filtration pressure which reduces glomerular filtration rate.
Constriction of efferent arteriol increases glomerular filtration pressure but decreases renal blood flow. The glomerular filtration pressure most likely decreases becuse the renal blood flow decreases, but decrease in glomerular filtration rate will not be proportionate because of the increase in glomerular capillary pressure.
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What is the effect of reducing afferent arteriole radius on
filtration rate? What is the effect...
3. In the kidney there are two separate capillary beds. Each has its own set of Starling forces for filtration and reabsorption. Solve the following sets of data. 4 points The first (glomerulus)...
3. In the kidney there are two separate capillary beds. Each has its own set of Starling forces for filtration and reabsorption. Solve the following sets of data. 4 points The first (glomerulus) capillary bed has an HPv of 58 mmHg at the afferent arterial end, the blood has an v of 28, and the efferent arterial end of the capillary has an HPv of 35. The HPt in the Bowman's capsule is 3 mmHg and the OPt is 2...
autoregulation to maintain a constant glomerular filtration rate is achieved through the vasoconstriction of afferent arterioles...
autoregulation to maintain a constant glomerular filtration rate is achieved through the vasoconstriction of afferent arterioles when blood pressure is high. TRUE OR FALSE
(5) An arteriole that originally had a diameter of 30 μm undergoes buildup of artherosclerotic plaques, reducing its diameter to 20 μm. Assuming nothing else in the system changes, what effect will th...
(5) An arteriole that originally had a diameter of 30 μm undergoes buildup of artherosclerotic plaques, reducing its diameter to 20 μm. Assuming nothing else in the system changes, what effect will this change in diameter have on the flow of blood through the arteriole? A-Blood flow will decrease by a factor of 16. B-Blood flow will increase by a factor of 1.5. C-Blood flow will decrease by a factor of 1.5. D-Blood flow will increase by a factor of...
What type of filtrate will stimulate the macula densa cells to increase the diameter of the...
What type of filtrate will stimulate the macula densa cells to increase the diameter of the afferent arteriole? What type of filtrate would require an increase in filtration rate?
Which of the following is NOT true regarding sickle-cell disease? Select one: a. It is due...
Which of the following is NOT true regarding sickle-cell disease? Select one: a. It is due to a mutation resulting in a hydrophilic amino acid. b. It is a cause of anemia. c. It is due to a hereditary hemoglobin defect. d. It is caused by a recessive allele that modifies the structure of hemoglobin. O e. It is advantageous in that it can protect carriers against malaria. Which of the following would not lead to polycythemia? Select one: a....
select the right answer QUESTION : Aldosterone : select 1 1) is a mineralocorticoid that stimulates...
select the right answer QUESTION : Aldosterone : select 1 1) is a mineralocorticoid that stimulates the reabsorption of sodium 2) is secreted by the posterior pituitary gland 3) acts on the collecting duct blocking the reabsorption of water 4) stimulates the reabsorption of water but has no effect on potassium QUESTION : what is the urine making structure of the kidney? 1) trigone 2) renal pyramid 3) renal capsule 4) nephron unit QUESTION : which of the following is...
6) The vasa recta are associated with which structures in the kidney? (2pts) Afferent arterioles Glomeruli...
6) The vasa recta are associated with which structures in the kidney? (2pts) Afferent arterioles Glomeruli Cortical nephrons juxtamedullary nephrons 7) What type of response by the afferent arterioles would you expect if blood pressure increased? (2pts) The afferent arterioles would stimulate renin release. The afferent arterioles would not respond to blood pressure changes. The afferent arterioles would constrict. The afferent arterioles would dilate. 8) Extrinsic controls regulate glomerular filtration rate as a means of regulating pts) systemic blood pressure...
CAN SOMEONE PLEASE ANSWER MY QUESTIONS 89. An ased GFR (glomerular filtration rate) leads to an...
CAN SOMEONE PLEASE ANSWER MY QUESTIONS
89. An ased GFR (glomerular filtration rate) leads to an increase in urine production. True False 90. Oxy n e caried in the blood in the form of bicarbonate ions and is bound to hemoglobin. True False 91. The greatest amou nt of carbon dioxide transported in the blood is in the form of dissolved carbon dioxide. True False 92. A lower affinity for oxygen by hemoglobin will decrease oxygen unloading to tissues. True...
What is glomerular filtration rate? How is it determined? What is the significance of changes in...
What is glomerular filtration rate? How is it determined? What is
the significance of changes in Glomerular filtration rate in
health?
Urinary system: Review 1. Describe the functions of the kidney. 2. List the nitrogenous wastes of metabolism, What are their origins? 3. Compare azotemia and uremia. 4. Describe the gross anatomy of the urinary system. 5. Give an overview of the pathway of urine flow from the kidney to leaving the body. Describe the structure of a nephron. V7....
consider the following reaction at equilibrium. What effect will reducing the temperature have on the system?...
consider the following reaction at equilibrium. What effect will reducing the temperature have on the system? What happens to K? C3H8(g) + 5 O2(g) ⇌ 3 CO2(g) + 4 H2O(l) ΔH° = -2220 kJ
3. In the kidney there are two separate capillary beds. Each has its own set of Starling forces for filtration and reabsorption. Solve the following sets of data. 4 points The first (glomerulus) capillary bed has an HPv of 58 mmHg at the afferent arterial end, the blood has an v of 28, and the efferent arterial end of the capillary has an HPv of 35. The HPt in the Bowman's capsule is 3 mmHg and the OPt is 2...
Which of the following is NOT true regarding sickle-cell disease? Select one: a. It is due to a mutation resulting in a hydrophilic amino acid. b. It is a cause of anemia. c. It is due to a hereditary hemoglobin defect. d. It is caused by a recessive allele that modifies the structure of hemoglobin. O e. It is advantageous in that it can protect carriers against malaria. Which of the following would not lead to polycythemia? Select one: a....
6) The vasa recta are associated with which structures in the kidney? (2pts) Afferent arterioles Glomeruli Cortical nephrons juxtamedullary nephrons 7) What type of response by the afferent arterioles would you expect if blood pressure increased? (2pts) The afferent arterioles would stimulate renin release. The afferent arterioles would not respond to blood pressure changes. The afferent arterioles would constrict. The afferent arterioles would dilate. 8) Extrinsic controls regulate glomerular filtration rate as a means of regulating pts) systemic blood pressure...
CAN SOMEONE PLEASE ANSWER MY QUESTIONS
89. An ased GFR (glomerular filtration rate) leads to an increase in urine production. True False 90. Oxy n e caried in the blood in the form of bicarbonate ions and is bound to hemoglobin. True False 91. The greatest amou nt of carbon dioxide transported in the blood is in the form of dissolved carbon dioxide. True False 92. A lower affinity for oxygen by hemoglobin will decrease oxygen unloading to tissues. True...
What is glomerular filtration rate? How is it determined? What is
the significance of changes in Glomerular filtration rate in
health?
Urinary system: Review 1. Describe the functions of the kidney. 2. List the nitrogenous wastes of metabolism, What are their origins? 3. Compare azotemia and uremia. 4. Describe the gross anatomy of the urinary system. 5. Give an overview of the pathway of urine flow from the kidney to leaving the body. Describe the structure of a nephron. V7....
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