What role do sensory nerves primarily serve in the nervous system?

Sensory nerves play a critical role in the nervous system by transmitting sensory information from various parts of the body to the brain. This process allows the brain to receive inputs regarding sensations such as touch, pain, temperature, and proprioception. When sensory receptors detect these stimuli, they convert the information into electrical signals that travel along sensory nerves to the central nervous system, where it can be processed and interpreted.

This function is essential for our interaction with the environment and for making decisions based on sensory input. For instance, touching a hot surface sends signals through sensory nerves to the brain, which then processes this information to initiate a reflex response to withdraw the hand. Thus, sensory nerves are fundamental to our ability to perceive and respond to the world around us.