Cardiac Cycle Video Review

Where does oxygenated blood from the lungs enter the heart?

• Right ventricle

• Right atrium

• Left atrium

• Left ventricle

What is the name of the valve that prevents backflow of blood from the left ventricle to the left atrium?

• Pulmonary semilunar valve

• Left atrial ventricular valve

• Aortic semilunar valve

• Right atrial ventricular valve

Which artery is closed off from the left ventricle by the aortic semilunar valve?

• Pulmonary artery

• Coronary artery

• Carotid artery

• Aorta

What is the name of the valve that prevents backflow of blood from the right ventricle to the right atrium?

• Pulmonary semilunar valve

• Aortic semilunar valve

• Right atrial ventricular valve

• Tricuspid valve

Where does deoxygenated blood enter the right atrium from the lower body?

• Pulmonary veins

• Pulmonary artery

• Inferior vena cava

• Superior vena cava

Where does the blood return to the heart after flowing through the capillaries?

• Left ventricle

• Right atrium

• Left atrium

• Right ventricle