Which of the following is involved in autoregulation of the GFR?
A) A myogenic mechanism in which the afferent arteriole automatically constricts when it is stretched
B) A tubuloglomerular feedback mechanism in which vasoactive chemicals released from the juxtaglomerular apparatus bring about afferent arteriolar vasoconstriction
C) Sympathetically induced vasoconstriction of the afferent arterioles
D) Both a and b
E) None of the above
Correct Answer:
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Q35: When arterial blood pressure is elevated above
Q36: Glomerular filtration
A)occurs in the loop of Henle
B)is
Q37: Which statement about tubular reabsorption is incorrect?
A)It
Q38: Tubular reabsorption
A)refers to the movement of a
Q39: Tubular reabsorption
A)moves substance from the peritubular capillaries
Q41: Tubular maximum (Tm)
A)is the maximum amount of
Q42: The juxtaglomerular apparatus
A)is a combination of specialized
Q43: Which of the following plasma constituents is
Q44: When blood volume becomes abnormally low,
A)sodium reabsorption
Q45: Sodium reabsorption in the distal portions of
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