Chamber P is called the

• left atrium and receives blood from body

• right atrium and receives blood from lungs

• left atrium and receives blood from lungs

• right atrium and receives blood from body

The aorta carries

• oxygenated blood away from the heart

• deoxygenated blood towards the lungs

• oxygenated blood towards the lungs

• deoxygenated blood away from the heart

The blood vessel entering the left atrium is the

• aorta

• vena cava

• pulmonary artery

• pulmonary vein

What is the function of the valves (structure S)?

• prevent oxygenated blood mixing with deoxygenated blood

• prevent oxygenated blood passing from a ventricle to an atrium

• direct the flow of deoxygenated blood returning from the lungs

• direct the flow of deoxygenated blood from the heart to the lungs

The coronary arteries supply

• oxygenated blood to the ventricle chambers

• oxygenated blood to the heart wall muscle

• deoxygenated blood to the heart wall muscle

• deoxygenated blood to the ventricle chambers

Which of the following is NOT true of the body's capillary network?

• it forms a dense network that serves all living cells

• it consists of many arteries and veins in all body parts

• the walls of its vessels are only 1 cell thick

• the combined surface area of its vessels is enormous

Which of the following is the correct sequence of the vessels in which blood is transported around the body

• heart - arteries - veins - capillaries

• heart - veins - capillaries - arteries

• heart - capillaries - veins - arteries

• heart - arteries - capillaries - veins

Which of the following blood vessels carries deoxygenated blood away from the heart?

• aorta

• vena cava

• pulmonary artery

• pulmonary vein

What is the only vein the body to carry oxygenated blood?

• hepatic vein

• pulmonary vein

• vena cava

• coronary vein

Which type of blood cell is able to make antibodies to defend the body against infection?

• red blood cell

• lymphocytes

• phagocytes

• macrophages