9. Between the right ventricle and its artery is the pulmonary aortic valve,
on the left is the ______ valve.
10. All four valves function to prevent ______ of blood.
11. Match the vessels that connect each chamber.
Right atrium d
Left atrium c
Right ventricle b
Left ventricle a
a. aorta
b. pulmonary arteries
c. pulmonary veins
d. superior and inferior vena cavae
12. The ______ provide the heart itself with blood. The ______ veins drain blood back to the right atrium from the heart from the ______
13. The pulmonary artery takes deoxygenated blood to the lungs; its pumping
chamber is located on the R side of the heart.
14. The vein takes oxygenated blood and distributes it to the entire body; it's
pumping chamber is located on the L side of the heart.
15.The pacemaker of the heart is called the SA node.
16. Atria contract, then as they relax, ventricles contract. Contraction is called systole and relaxation is called diastole. When the ventricles finish
contracting, the entire heart remains relaxed so it can fill with blood before
contracting again.
17. The term ______ means the cells set their own rhythm.
18. The term for one complete contraction/relaxation is the cardiac cycle
