Neurons are specialized cells of the central nervous system and the basic signal components of the brain. Neuronal dysfunction is an important factor in many neurological diseases. Therefore, the ability to identify, characterize, and analyze these different cells and their functions is essential for neuroscience and neuropathology research. Different neurons have different functions, and can be divided into several categories according to the neurotransmitters they express, their polarity, morphology, anatomical location, and the direction in which they transmit information. Learn more about neuron marker.