Available Answers

1. 1.

   Multiple choice question.

   1. Which part of the brain is known as the memory and intelligence centre?
      1. Cerebrum
      2. Cerebellum
      3. Medulla
      4. All of these
   2. Which of the following nerve carries impulses from the receptor cells to the brain?
      1. Mixed nerve
      2. Sensory nerve
      3. Motor nerve
      4. All of these
   3. Reflex action is controlled by:
      1. cerebrum
      2. cerebellum
      3. medulla
      4. spinal cord
   4. Retina is the part of:
      1. ear
      2. nose
      3. eye
      4. skin
   5. Which of the following organs helps us feel heat or cold?
      1. Skin
      2. Nose
      3. Eye
      4. Ear
2. 2.

   Fill in the blanks.

   fast, voluntary, brain stem, antiseptic, 1.5 kg,

   1. _____________ prevents the entry of germs through a cut on the skin.
   2. The average weight of the brain is _____________.
   3. The medulla is also known as the _____________.
   4. Cerebellum coordinates the _____________ muscles.
   5. The reflex actions are very _____________.
3. 3.

   What is meant by reflex action? Give any two examples of reflex actions.

4. 4.

   What are sense organs? How can you take care of your skin?

5. 5.

   Name the different parts of the brain and mention the function of the cerebellum and medulla.

6. 6.

   Differentiate between Sensory and Motor nerve.