GENERAL HISTOLOGY

Detailed explanation-1: -Interneurons (also known as association neurons) are neurons that are found exclusively in the central nervous system. ie Found in the brain and spinal cord and not in the peripheral segments of the nervous system.

Detailed explanation-2: -A spinal interneuron, found in the spinal cord, relays signals between (afferent) sensory neurons, and (efferent) motor neurons. Different classes of spinal interneurons are involved in the process of sensory-motor integration. Most interneurons are found in the grey column, a region of grey matter in the spinal cord.

Detailed explanation-3: -The grey matter in the center of the cord contains interneurons and the cell bodies of motor neurons, axons, and dendrites.

Detailed explanation-4: -The spinal cord is comprised of two main types of neuronal populations: spinal interneurons (SpINs) and projection neurons. Projection neurons are those with the cell body within the spinal cord, but projections outside the spinal cord (either to other parts of CNS or periphery).