1. How many chambers does the heart have?: Answer 4 chambers which are divided inleft and right sides 2. Where does the atria pump blood to?: Answer Ventricles 3. Where does the right ventricle pump blood to?: Answer Lungs 4. Where does the left ventricle pump blood to?: Answer Body 5. Pulmonary circuit: Answer Atria receive incoming blood, and ventricles pump outgoingblood to lungs, and then body. Is also a one-way valve that keeps blood flowing in the proper direction 6. Systemic circuit: Answer Aorta receives blood ejected from left ventricle and bloodcirculates throughout the body, returns to heart via vena cava 7. Cardiac output (CO): Answer Amount of blood ejected by a ventricle in 1 minute CO = SV x HR (heart rate)