What is the function of the circulatory system?

• Maintaining body temperature

• Transporting hormones

• Fighting infections

• Delivering oxygen to organs

What is the liquid portion of blood called?

• Plasma

• Red blood cells

• White blood cells

• Platelets

Which component of blood carries oxygen?

• Red blood cells

• White blood cells

• Platelets

• Plasma

What is the color of human blood?

• Red

• Blue

• Green

• Yellow

Which chamber of the heart pumps deoxygenated blood?

• Right atrium

• Right ventricle

• Left atrium

• Left ventricle

What is the major artery that carries oxygenated blood throughout the body?

• Pulmonary artery

• Aorta

• Coronary artery

• Superior vena cava

How does oxygen get delivered to organs and tissues?

• Through veins

• Through capillaries

• Through arteries

• Through the heart

What is the purpose of valves in the heart?

• Separate the chambers

• Prevent backflow of blood

• Coordinate contractions

• Deliver oxygen and glucose

What is the pathway of blood from the right atrium to the aorta?

• Right atrium, Right ventricle, pulmonary artery, lungs, pulmonary vein, Left atrium, Left ventricle, aorta

• Left atrium, left ventricle, aorta, pulmonary artery, lungs, pulmonary vein, right atrium, right ventricle

• Right atrium, right ventricle, pulmonary artery, lungs, pulmonary vein, left ventricle, left atrium, aorta

• Left atrium, left ventricle, aorta, pulmonary artery, lungs, pulmonary vein, right atrium, right ventricle

What can happen if there is an atrial septal defect?

• Abnormal heartbeat

• Stroke

• Heart failure

• All of the above