Heart

Where does the blood entering the right atrium come from?

• The lungs

• The left ventricle

• The body

• The left atrium

Which chamber of the heart pumps blood to the body?

• Right atrium

• Right ventricle

• Left atrium

• Left ventricle

What is the function of a valve in the heart?

• To pump blood

• To prevent blood from flowing backward

• To oxygenate the blood

• To carry blood to the heart

Which side of the heart contains oxygen-rich blood?

• Right side

• Left side

• Both sides

• Neither side

From where does un-oxygenated blood enter the right atrium?

• Pulmonary artery

• Aorta

• Superior vena cava

• Inferior vena cava

Which side of the heart pumps oxygen-rich blood to the rest of the body?

• Right side

• Left side

• Both sides

• Neither side

Where does the right side of the heart pump blood?

• To the body

• To the left ventricle

• To the lungs

• To the right atrium

What is the function of veins in the circulatory system?

• Veins carry blood away from the heart.

• Veins carry blood to the heart.

• Veins oxygenate the blood.

• Veins filter the blood.

How many chambers does the heart have?

• 2

• 4

• 6

• 8

What does the septum separate in the heart?

• The upper and lower chambers

• The left and right atria

• The left and right ventricles

• The left and right heart chambers