A nerve is a bundle of fibers (axons) that transmits electrical signals (impulses) throughout the body. Nerves are part of the nervous system, which also includes the brain and spinal cord. Nerves are responsible for transmitting sensations such as touch, pain, and temperature, as well as coordinating movement and transmitting signals between the brain and the rest of the body. There are three main types of nerves: sensory nerves, which transmit information from the body to the brain; motor nerves, which transmit signals from the brain to the muscles; and mixed nerves, which contain both sensory and motor fibers. Nerve damage or injury can result in a range of symptoms, depending on the location and severity of the injury, and can include pain, numbness, weakness, and loss of sensation. Treatment for nerve damage may involve medications, physical therapy, or surgery, depending on the specific needs and medical history of each individual patient.

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