The Heart & Blood Vessels

Which of these is at the an upper chamber of the heart?

• Ventricle

• Atrium

Which of these is the 'relaxation phase' of the cardiac cycle?

• Systole

• Diastole

What type of blood is sent from the lungs to the heart?

• Deoxygenated

• Oxygenated

What do the valves in the heart do?

• Stop blood

• Stop oxygen

• Prevent backflow of blood

• Allow backflow of blood

Which of these (x2) are responsible for delivering blood to/from the lungs?

• Vena Cava

• Aorta

• Pulmonary Artery

• Pulmonary Vein

The Aorta delivers oxygenated blood to the body, what uses it?

Which of these delivers deoxygenated blood from the Lower body back to the heart?

• Superior Vena Cava

• Inferior Vena Cava

Arteries have a _ _ _ _ _ outer wall

Which of these are present in a 'Vein'?

• Thin Outer Wall

• Wide Central Tube (lumen)

• Thin layer of muscle and elastic fibres

• Thick outer wall

Oxygenated blood is pumped from the lungs to the heart and from the heart to the working muscles.

It is pumped away from the heart under _____ pressure.