Heart Circulatory System

Blood leaves the heart in two vessels, namely the:

• Aorta and pulmonary vein

• Pulmonary artery and aorta

• Aorta and venae cavae

• Pulmonary artery and pulmonary vein

A boy is bitten by a poisonous snake on his left leg. Poison gets to his heart through the:

• Pulmonary vein

• Left subclavian artery

• Inferior vena cava

• Hepatic portal vein

Which of the following contain deoxygenated blood?

• Left ventricle

• Pulmonary vein

• Right atrium

• Coronary artery

Identify

• Pulmonary veins

• Pulmonary artery

• Aorta

• Vena cava

Identify

• Left atrium

• Right atrium

• Left ventricle

• Right ventricle

What makes the "lub, dub" sound of a beating heart?

• The ventricles contracting

• The atria contracting

• The opening and closing of heart valves

• none of the above

The heart is made up of cardiac muscle tissue, which is "involuntary muscle."

• True

• False

An ______ carries oxygenated blood away from the heart.

A stronger heart beats "more" or "less" times per minute with the body at rest?

• More

• Less

Capillaries are the smallest blood vessels in the circulatory system.

• True

• False