Available Answers

1. 1.

   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:
2. 2.

   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 _________________.
3. 3.

   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 ___________.
4. 4.

   What is the function of red blood cells?

5. 5.

   What is plasma?

6. 6.

   Explain the working of the heart.