Q5.    Write short notes on the following:

        (a) Neural coordination

Answers (1)
  • Coordination is a characteristic feature of living organisms. It is the process through which two or more organs interact and complement the functions of one another.
  • Coordination is achieved by two ways in humans and other higher order animals—neural coordination and chemical coordination.
  • Neural coordination is carried out by highly specialised cells called neurons.
  • The neural system is a network of point-to-point connections between the neurons and the organs and it operates through nerve impulses.
  • Neural coordination is always between the stimulus and the response—receptors and effectors.
  • All body functions are carried out and controlled by neural coordination.
  • The stimulus is received from organs such as the skin and a response is generated which is sent to the muscles or glands.
  • The previous stimulus is always stored in memory by the neural system.
  • Neural coordination helps in controlling and harmonising voluntary actions such as running, walking, writing and talking.
  • It helps us to remember, analyse, think and reason because the brain, a part of the neural system, is the site of intelligence.
  • All vital functions such as breathing, working of the heart and digestion are controlled by neural coordination.
  • It helps maintain homeostasis by coordinating between various metabolic activities of the body.

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