The purpose of the four valves of the heart is to ____.

A) control the rate of blood flow
B) ensure one-way blood flow
C) keep the blood in the correct chamber
D) maintain blood pressure
E) generate rhythmic contractions

Heart Valves

Structures within the heart that open and close to control the flow of blood through the heart's chambers and into the body.

Blood Flow

The continuous circulation of blood through the cardiovascular system, supplying nutrients and oxygen to the body.

Blood Pressure

The force exerted by circulating blood upon the walls of blood vessels, typically measured in the arteries.