Cardiovascular system

The heart is split into how many chambers?

• Three

• Six

• Four

• Two

The two upper chambers are called?

• Right ventricle and Left ventricle

• Right ventricle and Left atrium

• Right atrium and left atrium

The two lower chambers are called:

• The right and left ventricle

• The right and left atrium

• The left and right superior vena cava

I am the main artery of the body

• Aorta

• Pulmonary artery

• Vena cava

• Pulmonary vein

How many valves does the heart have?

• Four

• Six

• Five

• Two

The right side of the heart receives

The left side of the heart receives

Which node is known as the pacemaker?

• SA node

• AV node

How many waves are there in a normal ECG

• Five

• Eight

• Three

• Four

Which blood vessel contain valves and has thinner walls?

• Veins

• Arteries

• Capillaries