The valve between the atrial and ventricular chambers that prevents blood backflow to the atria is the:

The superior chambers of the heart are?

The loose fitting serous membrane enclosing the heart is:

The partition dividing the ventricles is the:

The middle layer of the heart wall is the:

The inferior chambers of the heart are the:

The innermost layer of the heart wall is the:-

The partition dividing the atria is the:

The right atrioventricular valve is called:

The valve at the junction of the aorta and the left ventricle is the:

The valve at the junction between the right ventricle and the pulmonary trunk is the:

The left atrioventricular valve is the:

White collagen cords that anchor the valve cusps to the muscle wall are the:

An enlarged vessel which empties blood into the right atrium is the:

Arteries that encircle and provide blood flow to the heart are:

Junctions where cardiac cells interconnect are:

Veins of the heart where venous blood collects are:

Chest pain caused by deficient blood delivery is called:

Inflammation of the pericardium is called:

Abnormal or unusual heart sounds are known as:

Death of cardiac cells that cause a heart attack is called:

The contraction phase of heart activity is known as:

Depressed pumping efficiency and depressed circulation is know as:

An improperly closing valve that allows blood to backflow is called:

The period of relaxation of the heart during which it fills with blood is known as:

Stiffened heart valves due to scarring is known as:

Fibers that penetrate the ventricular myocardium and pass the wave are:

The volume of blood ejected by a ventricle during systole is:

The area in the inferior interatrial septum that delays the wave is the:

The minute cell mass that initiates each depolarization wave and sets the pace for the heart is the:

The area in the anterventricular septum that passes the wave is the:

The sequence of events to include one complete contraction and relaxation of the atria and ventricles is the:

The irregular, uncoordinated contraction of heart muscle cells is: