Understanding the Cardiovascular System

Pulmonary circulation involves blood flow to and from the heart and the:

• A) body

• B) digestive organs

• C) skin

• D) lungs

Pulmonary veins:

• transport oxygenated blood to the lungs

• transport blood rich in carbon dioxide to the lungs

• transport oxygenated blood to the heart

• split off the pulmonary trunk

When the ventricles contract, the bicuspid (mitral) valve prevents blood from flowing from the:

• right ventricle to the right atrium

• left ventricle to the left atrium

• left atrium to the right atrium

• right atrium to the left atrium

Describe the pathway of blood flow through the heart.

• Right ventricle → Aorta → Lungs → Left atrium → Right atrium → Left ventricle

• Left atrium → Right atrium → Aorta → Left ventricle → Lungs → Right ventricle

• Right atrium → Left ventricle → Lungs → Right ventricle → Aorta → Left atrium

• Right atrium → Right ventricle → Lungs → Left atrium → Left ventricle → Aorta

The tricuspid valve is located between the:

• right atrium and left atrium

• right atrium and right ventricle

• left ventricle and pulmonary artery

• left ventricle and aorta

The pointed apex of the heart is oriented toward the:

• left shoulder

• right shoulder

• left hip

• right hip

Deoxygenated blood is returned to the right side of the heart by the:

• superior and inferior vena cavae

• pulmonary trunk

• aorta

• pulmonary veins

Which one of the following blood vessels carries oxygenated blood:

• pulmonary vein

• superior vena cava

• inferior vena cava

• coronary sinus

The right AV valve is known as the:

• aortic semilunar valve

• tricuspid valve

• mitral valve

• pulmonary semilunar valve

Blood leaves the right ventricle through a large artery called the __________.

• mitral valve

• tricuspid valve

• aortic semilunar valve

• pulmonary trunk