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The receptors play a very important role in human body and as well as life. receptors detect the change in the environment and send the message to the brain through the sensory nerve.
there are five types of receptors .
1.. photoreceptors ( receptors for light.) in eyes.
2.phonoreceptors ( for hearing.) in ears
3. olfactoreceptors.. ( for smelling) in nose
4. gustatoreceptors ( for tasting) in tongue
5. mechanoreceptors ( for touch) in skin.
our brain will not get the proper knowledge about the things around us and this can lead to accidents and will not able to decide proper actions.