Vasopressin (ADH) a) Enhance facultative reabsorption of water b) Decreases reabsorption of water c) Increases excretion of calcium d) Decreases excretion of calcium
Q: Low sodium at the macula densa will cause what effect? a) the macula densa cells to release…
A: The distal tubule cells that come into contact with the afferent and efferent glomerular arterioles…
Q: The basement membrane of the glomerulus is composed of glycoproteins and ___ and it restricts the…
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![Vasopressin (ADH)
a) Enhance facultative reabsorption of water
b) Decreases reabsorption of water
c) Increases excretion of calcium
d) Decreases excretion of calcium](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2f3a1fd5-8a72-4f58-844a-a61c0b7c1738%2F9618a57c-28d7-4cbc-994f-e16ee6ccc78d%2Fgsrox24_processed.png&w=3840&q=75)
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- Alcohol acts as a diuretic A) By inhibiting the release of antidiuretic hormone B) By inhibiting sodium ion reabsorption C) By inhibiting sodium ion movement in the loop of Henle D) By carrying water out of the glomerulus E) By pure serum dilutionIf the Tm for a particular amino acid is 220 mg/100 ml and the concentration of that amino acid in the blood is 130 mg/100 ml, the amino acid will ________. A) not appear in the urine because it is too large to be filtered B) be actively secreted into the filtrate C) be completely reabsorbed by the tubule cellsCaffeine acts as a diuretic A) By inhibiting tubular sodium ion reabsorption B) By inhibiting the release of antidiuretic hormone C) By carrying water out of the glomerulus D) By inhibiting sodium ion movement in the loop of Henle E) By pure serum dilution
- Which of the following is false about water reabsorption at the kidneys: a). Water is actively pumped from the tubules into the bloodb). A concentration gradient of sodium must be established to move Water c). The loops of Henie allow for water reabsorption d). Water moves through aquaporinsThe proximal convoluted tubule: A) Functions in reabsorption and secretion and functions both actively and passively B) Functions only in reabsorption C) Functions solely passively D) Functions only in secretion E) Functions solely actively3) Which of the following best describes the action of a loop diuretic? A) Inhibits potassium reabsorption in the distal tubule B) Inhibits sodium reabsorption in the proximal tubule C) Inhibits sodium reabsorption in the loop of Henle D) Inhibits water secretion in the loop of Henle
- Decreased renal blood flow Sympathetic input Angiotensinogen Increased effective blood volume to correct initial stimulus to the system Increased sodium and water reabsorption by nephron collecting duct Renin released by juxtaglomerular cells of nephron cleaves angiotensinogen A) decreased renal blood flow B) increased renal blood flow C) sympathetic input D) angiotensin II negative feedback Stimulating variables: Nitric oxide from macula densa E) increased blood volume CAMP Diuretics Epinephrine Norepinephrine Early part of day Erect posture Hyponatremia Hyperkalem Fig. 17-17. The Feedback Mechanisms Regulating Aldosterone Secretion CAMP Cyclic adenosine monophosphate; ACTH, adrenocorticotropic hormone Copyright ©2008 by Mosby, Inc., an affliate of Elsevier Inc. (-) Angiotensin I TAldosterone levels Inhibiting variables: Adenosine from macula densa Angiotensin II Adrenergic blocking agents Aldosterone Angiotensin I-converting enzyme in lung Recumbent posture Later part of day P ACTH…When blood starts to become too acidic, the kidneys respond by a.) decreasing filtration rate and increasing reabsorption of both bicarbonate ions and H+. b.) synthesizing and reabsorbing H+ while filtering bicarbonate ions. c.) synthesizing and secreting bicarbonate ions while reabsorbing H+. d.) synthesizing and reabsorbing bicarbonate ions while secreting H+. e.) increasing filtration rate and increasing reabsorption of H+.Low sodium at the macula densa will cause what effect? a) the macula densa cells to release aldosterone b) constriction of the afferent arteriole to increase glomerular filtration rate c) the juxtaglomerular cells to release renin into the blood stream d) ACE to convert Angiotensin I to Angiotensin II and cause vasodilation
- For glucose to be reabsorbed from the tubule lumen, it is transported into the tubule cell by means of A) Na+/glucose antiporter. B) Na+/glucose symporter. 977 C) glucose protein channel. D) glucose uniporter.Renin is released from the JG apparatus in response to A) low blood pressure or decreased NaCI in the fluid within the distal convoluted tubule. B) high blood pressure or increased NaCI in the fluid within the distal convoluted tubule. C) high blood pressure or decreased NaCI in the fluid within the distal convoluted tubule. D) low blood pressure or increased NaCI in the fluid within the distal convoluted tubule.ADH controls .... a) Na + pumps in proximal tubules b) Water permeability in distal tubules and collecting duct c) Na + pumps and vasa recta d) The water permeability in Henle's sling
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