The "double pump" function of the heart includes the right side, which serves as the _______circuit pump, while the left side serves as the ________pump.

The visceral pericardium, or epicardium, covers the:

Atrioventricular valves prevent backflow of blood into the _______; semilunar valves prevent backflow into the _______ :

Blood flows from the left atrium into the left ventricle through the _____ valve.

When deoxygenated blood leaves the right ventricle through a semilunar valve, it is forced into the:

Blood from systemic circulation is returned to the right atrium by the superior and:

Oxygenated blood from the systemic arteries flows into:

The lung capillaries receive deoxygenated blood from the:

One of the important differences between skeletal muscle tissue and cardiac muscle tissue is that cardiac muscle tissue is:

Cardiac muscle tissue:

Blood from coronary circulation is returned to the right atrium of the heart via:

The correct sequential path of a normal action potential in the heart is:

The sinoatrial node acts as the pacemaker of the heart because these cells are:

After the AV node is depolarized and the impulse spreads through the atria, there is a slight delay before the impulse spreads to the ventricles. The reason for this delay is to allow:

The P wave of a normal electrocardiogram indicates:

The QRS complex of the EKG appears as the:

EKGs are useful in detecting and diagnosing abnormal patterns of cardiac activity called:

The "lubb-dubb" sounds of the heart have practical clinical value because they provide information concerning:

When a chamber of the heart fills with blood and prepares for the start of the next cardiac cycle the heart is in:

The amount of blood ejected by the left ventricle per minute is the: