Sensory neurons transmit signals about external stimuli to the central nervous system, enabling appropriate responses.
Sensory neurons are responsible for sending the signal about the scratch on your thigh due to their role in carrying signals from tissues to the central nervous system.
In this scenario, the sensory neurons would transmit the information about the mosquito bite to the central nervous system, allowing you to feel the sensation and resulting in the impulse to scratch the area.
This process exemplifies the function of sensory neurons in detecting external stimuli and relaying that information for a response.
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