The parietal pericardium is also known as the epicardium of the heart wall.

The function of the serous pericardium is to reduce friction as the heart moves.

The myocardium of the right ventricle is thicker than that of the left ventricle.

The left side of the heart sends oxygen poor blood to the lungs.

The function of the heart valves is to prevent blood from flowing backwards.

Diabetics have an increased risk of atherosclerosis.

Bacterial or viral infections can lead to atherosclerosis.

A heart attack is called a myocardial embolism.

The AV (atrioventricular) node can become the pacemaker if the SA (sinoatrial) node fails.

A heart rate faster than 100 beats per minute is bradycardia.

The repolarization of the atria is in the T wave of an ECG.

Both the atria and ventricles have a period of relaxation at the same time.

Both the AV (atrioventricular) and SL (semilunar) valves are closed during heart diastole.

Diastole refers to contraction of the heart muscle and systole refers to relaxation of the heart muscle.

Stimulation of the heart by the parasympathetic division of the autonomic nervous system causes the heartbeat to slow down.

A decrease in body temperature will lead to an increase in heart rate.

The heart needs to contract with more force if the blood pressure is high.

Arteries transport oxygenated blood and veins transport deoxygenated blood.

Blood flow through a capillary bed remains constant at all times.

Blood flow through capillaries occurs very quickly.

The opening and closing of capillary beds can affect blood pressure.

Both arteries and veins have valves to prevent the backward flow of blood.

The walls of veins are thinner than the walls of arteries.

At any given time, more than half of the total blood volume is in the capillaries.

Blood flow in veins results, in part, from skeletal muscle contraction.

Parasympathetic nerves control the diameter of blood vessels.

In the blood pressure reading 125/70, 125 is the diastolic pressure.

The umbilical arteries carry oxygen rich blood to the fetus.

Systolic pressure is generated when the left ventricle is pumping blood out of the heart and diastolic pressure is generated when the left ventricle is at rest.