Final answer:
The ANS controls processes of kidney function such as blood flow, vasoconstriction, and regulation of blood pressure and volume through the renin-angiotensin-aldosterone mechanism.
Step-by-step explanation:
The processes of kidney function that are controlled by the ANS (Autonomic Nervous System) include vasodilation and increased blood flow through the kidneys during resting conditions when sympathetic stimulation is reduced. On the other hand, under conditions of stress, sympathetic nervous activity increases, resulting in vasoconstriction of the afferent arterioles and a decrease in blood flow through the kidneys. The ANS also plays a role in the release of renin, which regulates blood pressure and volume through the renin-angiotensin-aldosterone mechanism.