Circulatory System - Multiple Choice Test

The human heart is: A. made of muscle. B. a pump. C. has four chambers. D. beats faster when you exercise. E. All of the above.

• made of muscle

• a pump

• has four chambers

• beats faster when you exercise

• All of the above

The lub dub sound of the heart beating is the sound of:

• the muscles of the heart contracting.

• the heart valves opening and closing.

• the blood moving in and out of the heart.

• the blood moving in and out of the lungs.

The heart valves do all of the following, EXCEPT:

• A. separate the atria and the ventricles.

• B. keep the blood flowing forward.

• C. regulates the heart's contractions.

• D. include the mitral valve and bicuspid valve.

The blood comes back to the heart from the body through two big veins called the:

• pulmonary veins

• right atrium

• aorta

• vena cavas

The first chamber of the heart the blood from the body enters is the:

• left atrium

• right atrium

• left ventricle

• right ventricle

The valve between the right atrium and the right ventricle is called the:

• bicuspid valve

• tricuspid valve

• mitral valve

• None of the above.

The blood is pumped to the lungs from the heart through the:

• aorta

• pulmonary veins

• pulmonary arteries

• vena cavas

The most muscular, powerful heart chamber is the:

• A. left atrium

• B. right atrium

• C. left ventricle

• D. right ventricle

The blood leaves the heart to the body through the:

• aorta

• pulmonary veins

• pulmonary arteries

• vena cavas

The only veins in the body that carry oxygenated blood are the:

• aorta

• pulmonary veins

• pulmonary arteries

• vena cavas