What is the purpose of ANP in urine production? A. stimulate the reabsorption of Na + B. stimulate the reabsorption of Ca ++ C. inhibit the reabsorption of Na + D. stimulate the reabsorption of water
Option C. ANP triggers the dilation of the afferent arterioles and constric- tion of efferent arterioles which will increase GFR. It additionally decreases sodium reab- sorption from the fi ltrate. Hence urine extent will increase (and blood extent and pressure decreases).
