Outlet from the heart's left ventricle

AORTICVALVE

["Think about the main artery that carries blood away from the heart. The answer involves the valve that controls the flow into this artery."]

The clue "Outlet from the heart's left ventricle" leads to the answer "AORTICVALVE" through a direct biological reference. In human anatomy, the left ventricle of the heart pumps oxygenated blood out to the rest of the body. The outlet through which this blood leaves the left ventricle is the aortic valve. The aortic valve connects the left ventricle to the aorta, the largest artery in the body. Therefore, the clue is asking for the specific valve that serves as the exit point for blood from the heart's left ventricle, which is the aortic valve, hence the answer "AORTICVALVE."