Tick (√) on the right answer:

1. Capillaries are the branches of blood vessels carrying:
2. The gaseous impurities in the blood are removed by the:
3. The e carry oxygenated blood:
4. These carry deoxygenated blood:
5. The heart of an adult human beats:
6. Our heartbeat means:
7. The chambers of a human heart:
8. The position of the heart in the chest is:

Complete the sentences:

1. The blood is made of plasma and _________________.
2. Oxygenated blood comes from _________________ to the  _________________ and deoxygenated blood goes from _________________ to the  _________________.
3. The extra water from the large intestine is _________________.
4. The white blood cells in the blood help _________________.

Fill in the blanks:

1. The circulatory system helps to maintain the ___________ ___________.
2. The circulatory system transports digested food from the ___________ to different  parts of the body.
3. We can feel the ___________ in our wrists.
4. The ___________ is a pumping organ.
5. The capillaries of arteries and veins are ___________.

What is the function of red blood cells?

What is plasma?