The dorsal root is a bundle of nerve fibers located at the back of the spinal cord. It carries sensory information from the body to the brain, allowing us to perceive sensations such as touch, pain, and temperature. Each spinal nerve has a dorsal root that connects to sensory neurons, which transmit signals from various parts of the body. The dorsal root is part of the peripheral nervous system and plays a crucial role in the overall function of the nervous system. It works alongside the ventral root, which carries motor signals from the brain to the muscles, enabling movement and coordination.