What is the approximate size of our heart?
Our fist
How many liters of blood does an adult have?
5 liters
How long does it take for the blood to leave the heart, circulate through the whole body and come back again to the heart?
60 seconds
What are the different kinds of blood vessels?
Arteries, veins, and capillaries
Which kind of blood vessel carries blood away from the heart?
Artery
Which kind of blood vessel carries blood to the heart?
Vein
Which kind of blood vessel connects the arteries to the veins?
Capillaries
How many chambers is the heart divided into?
4
What is the heart?
Muscle
What does the blood take to the body?
Oxygen and nutrients
