Hearing your cell phone ring in an otherwise quiet lecture hall is an example of Sensory Functions.
The sensory cells are the ones that carry signals to your brain and help one smell, touch and perform other sensory functions. This system is responsible for processing input from the environment. Therefore, the sensory nervous system is responsible for processing sensory information.
The nerve cells take stimulus from the environment and a direct response is given by our sense organs. For example, if you touch a hot object, you immediately remove your hand since the sense organ skin sends such signals to your brain, which responds in a fraction of seconds.
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