Blood Circulation in the Heart

Where does deoxygenated blood enter the heart?

• Right ventricle

• Right atrium

• Left atrium

• Left ventricle

Which valve prevents the backflow of blood from the right ventricle to the right atrium?

• Mitral valve

• Aortic valve

• Tricuspid valve

• Pulmonary valve

After leaving the right ventricle, where does blood travel next?

• Aorta

• Pulmonary arteries

• Pulmonary veins

• Left atrium

Oxygenated blood returns to the heart and enters which chamber?

• Right atrium

• Right ventricle

• Left atrium

• Left ventricle

Through which valve does blood flow from the left atrium to the left ventricle?

• Aortic valve

• Pulmonary valve

• Mitral valve

• Tricuspid valve

What is the role of the aortic valve?

• It regulates blood flow from the left ventricle to the aorta.

• It controls blood flow from the right ventricle to the pulmonary artery.

• It prevents backflow of blood into the left atrium.

• It stops blood from returning to the right atrium from the right ventricle.

True or False: The mitral valve is also known as the bicuspid valve.

• True

• False

True or False: Blood flows from the pulmonary veins into the right atrium.

• True

• False

True or False: The aorta carries deoxygenated blood to the body.

• True

• False

True or False: The pulmonary arteries carry oxygenated blood from the heart to the lungs.

• True

• False