The renin-angiotensin system will be activated by:
a. increased blood volume.
b. elevated sodium concentrations.
c. decreased blood pressure in the afferent arterioles.
d. renal hypertension.
ANS: C
The renin-angiotensin system is activated by decreased blood pressure. Activation of the ren-in-angiotensin system is not associated with the increased blood volume, elevated sodium levels, or renal hypertension.
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