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Control and Coordination
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13/10/2021 3:31 pm
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(a) What are the various sense organs in our body?
(b) What is meant by receptors and effectors? Give two examples of each.
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13/10/2021 3:32 pm
(a) There are 5 sense organs: Eyes, ears, nose, tongue and skin.
(b) A receptor is a cell (or a group of cells) in a sense organ which is sensitive to a particular type of stimulus (or a particular type of change in the environment).
Example: Photoreceptors and Phonoreceptors. An effecter is the part of the body which can respond to the stimulus according to the instructions sent from the nervous system (spinal cord and brain).
Example: Muscles and glands.