11. A realistic value for is about 180L/day a. glomerular filtration rate b. net
ID: 3523105 • Letter: 1
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11. A realistic value for is about 180L/day a. glomerular filtration rate b. net filtration pressure c. adult urine output d. renal blood flow e. sodium reabsorption 12. Atrial natriuretic factor is secreted in response to a. angiotensin b. hypertension c. hypotension d. aldosterone e. hyponatremia 13. Which of the following would reduce the glomerular filtration rate? a. vasoconstriction of the afferent arterioles b. vasodilation of the afferent arteriole c. vaso constriction of the efferent arteriole d. a drop in ontonic pressure e. an increase in osmotic pressure in the glomerular capsule 14. Because of the glomerular filtration. very little albumin escapes from the blood during a. oncotic pressure of the blood b. hydrostatic pressure of the blood c. fenestrated capillary endothelium d. basement membrane of the glomerulus e. juxtamedular apparatus 15. The first step leading to angiotensin Il production is the secretion of by kidneys a. angiotensisn I b. angiotensinogen c. angiotensin converting enzyme d. calcitrol e. reninExplanation / Answer
11) The correct option is a. glomerular filtration rate.
The glomerular filtration rate is the amount of blood filtered by glomerulus of the kidney into the Bowman's capsule per unit of time. A realistic value for glomerular filtration rate is about 180 L/day.
12) The correct option is b. hypertension.
Atrial natriuretic peptide is released during volume expansion and distributes to the natriuretic response. It has an essential role in hypertension.
13) The correct option is a. vasoconstriction of the afferent arteriole.
Vasodilation has the opposite effect of vasoconstriction on glomerular filtration rate, therefore, constriction of the afferent arteriole decreases the blood flow into the glomerulus, then glomerular hydrostatic pressure leads to a decrease in glomerular filtration rate.
14) The correct option is d. basement membrane of the glomerulus.
The glomerular basement membrane is the basal lamina layer of the glomerulus. It leaks a very little amount of albumin from the blood during glomerular filtration.
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