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What is the effect of secretion of ANS?(a) Increases urination frequency(b) Constricts blood vessels(c) Dilates blood vessels(d) Decreases urination frequencyThis question was posed to me by my school principal while I was bunking the class.This question is from Chemical Control and Coordination in portion Chemical Control and Coordination of Biology – Class 11

Answer»

The correct choice is (c) Dilates BLOOD vessels

Explanation: ANS or atrial natriuretic factor is SECRETED by the walls of the atria of the HEART. Its effect is to dilate the blood vessels. As a result, blood is provided more space to flow, and hence the blood PRESSURE DECREASES.



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