can you give me some tips amd key points in the chapter topic wise which would help me?

Asked by seeni2005 | 26th Jul, 2016, 06:58: PM

Expert Answer:


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You can refer to the Revision Notes on our website to grasp the key points in this chapter.

Some of the key points are as follows:

  • The nervous system is designed to bring about the coordination between different parts of the body.
  • The central nervous system primarily includes the brain and the spinal cord.
  • The cerebrum, cerebellum and medulla oblongata are the three primary regions of the brain.
  • The brain is the main coordinating centre of the body.
  • The spinal cord conducts sensory impulses from the skin and muscles to the brain.            
  • A neuron is the structural and functional unit of the nervous system.
  • The neurons are specialised for conducting information through electrical impulses from one part of the body to another.
  • A sudden action in response to the stimulus in the environment is called a reflex or reflex action.
  • The path travelled by the impulse during a reflex action is called a reflex arc.
  • The chemical control and coordination in animals is brought about by hormones secreted by the endocrine glands.
  • Movements exhibited by plants are mainly in response to a stimulus.
  • Auxins, gibberellins, cytokinins and abscisic acid are important hormones in plants.

Tips to study this chapter:

  • Be through with all the important definitions.
  • Practise drawing neat and well-labelled diagram of structure of neuron and brain.
  • Revise the path for the conduction of a nerve impulse.


Topperlearning Team.

Answered by Sheetal Kolte | 27th Jul, 2016, 09:14: AM