Available Answers

1. 1.

   Fill in the blanks.

   1.  Reaction of an organism to a stimulus is called a ______________.
   2.  The basic structural unit of nervous system is a ____________.
   3.  ______________ is the largest part of the brain.
   4.  _______________ nourishes the brain and absorbs shocks.
   5.  _______________ is the continuation of the medulla oblongata.
2. 2.

   People who have too much of alcoholic drinks have problems in walking straight and driving. Which part of their brain is affected?

3. 3.

   Tick the most appropriate answer.

   1. Short fibres extending from the cell body of a nerve cell are called
      1. dendrons
      2. axon
      3. dendrites
      4. gangila
   2. The message that travels along a nerve is called
      1. stimulus
      2. response
      3. sensation
      4. impulse
   3. Breathing and heartbeat are controlled by the
      1. cerebellum
      2. cerebrum
      3. medulla
      4. nerve cells
   4. Endocrine glands release
      1. enzymes
      2. hormones
      3. digestive chemicals
      4. gas
   5. Which of these is called the master gland?
      1. Pituitary
      2. Thyroid
      3. Ovary
      4. Adrenal
   6. The hormone thyroxine is released by the 
      1. parathyroid gland
      2. pituitary gland
      3. thyroid gland
      4. ovary
   7. Conversion of glucose into glycogen is controlled by
      1. thyroxine
      2. insulin
      3. adrenaline
      4. oestrogen
   8. The hormone secreted by the pituitary gland that controls overall growth is called
      1. growth hormone
      2. insulin
      3. adrenaline
      4. auxin
4. 4.

   Fill in the blanks.

   1.  The peripheral nervous system consists of _______________ and ________________ nerves.
   2.  A single long fibre extending from the cell body of a neuron is called _______________.
   3.  The brain is covered by three membranes called ______________.
   4.  The adrenaline glands secrete ________________ hormone.
   5.  Insulin is secreted by __________________.
5. 5.

   Match the following.

   COLUMN A (ENDOCRINE GLANDS)	COLUMN B (HORMONES)
   1. Pancreas	a. Adrenaline
   2. Pituitary gland	b. Oestrogen
   3. Thyroid gland	c. Growth hormone
   4. Adrenal gland	d. Insulin
   5. Testes	e. Thyroxine
   6. Ovary	f. Testosterone

    

6. 6.

   State if the following statements are true or false. Correct the statement if it is false.

   1. Each nerve cell consists of a cell body, many short fibres and a long fibre.
   2. Motor nerves carry impulses from the sense organs to the spinal cord.
   3. The largest portion of the brain is the cerebellum
   4. Thinking, reasoning and memory are controlled by medulla.
   5. Ovaries produce progesterone and testosterone.