A neuron is a type of cell found in the nervous system that is specialized to receive, process, and transmit information. Neurons are the building blocks of the brain, spinal cord, and nerves, and they are responsible for carrying out the functions of the nervous system, such as sending and receiving electrical signals. They have a unique structure that allows them to communicate with other cells through a process called synaptic transmission. Neurons are critical for various functions of the body, including sensory perception, motor control, memory, and cognition.