Renal System
What effect is achieved by having an arteriole that supplies blood and another that drains blood from the glomerulus?
Oxygen-rich blood can be supplied to the nephron after blood leaves the glomerulus.
The blood pressure within the glomerulus can be manipulated.
Reabsorption of water and nutrients from the filtrate is facilitated.
The concentration gradient within the kidney’s medulla can be maintained.
The blood pressure within the glomerulus can be manipulated.
Arterioles have smooth muscle in their wall which allows them to constrict and dilate, hence adjusting the flow through them and consequently the blood pressure within them.
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The kidney turns blood into filtrate and then filtrate into urine. Which list has the structures in the correct order of liquid flow from proximal to distal?A. Glomerulus, papilla, renal cortex, major calyx
B. Descending limb of the loop of Henle, distal convoluted tubule, renal pelvis, urethra
C. Efferent arteriole, collecting duct, proximal convoluted tubule, renal medulla
D. Afferent arteriole, ascending limb of the loop of Henle, ureter, Bowman’s capsule
What is the function of angiotensin II?
A. Causes constriction of systemic arteries
B. Causes the collecting ducts to become permeable to water
C. Causes the formation of atrial natriuretic hormone
D. Causes constriction of the efferent arterioles
In which section of the renal tubule is most water reabsorbed?
A. Descending limb of the loop of Henle
B. Ascending limb of the loop of Henle
C. Collecting duct
D. Proximal convoluted tubule
In the nephron, if the afferent arteriole dilates and the efferent arteriole constricts, which of the following would be true?
A. The glomerular filtration rate would decrease.
B. The pressure in the glomerulus will decrease.
C. The absorption of sodium and chloride ions form the filtrate would increase.
D. Before these events, the granular cells would have released renin.
Alcohol is a diuretic. How does it produce this effect?
A. It promotes the production of aldosterone.
B. It inhibits the production of antidiuretic hormone.
C. It inhibits the production of atrial natriuretic peptide.
D. It promotes the release of angiotensin II.
Which of the following chemicals is produced by the kidney?
A. Angiotensinogen
B. Bicarbonate ions
C. Sodium ions
D. Vitamin C
Which material is secreted into the filtrate in the kidney tubule?
A. H2O
B. Urea
C. Na+
D. Albumin
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