In other words, interneurons are middlemen neurons that are set between motor neurons and sensory neurons. In other words, interneurons are the link between motor neurons and sensory neurons, and they allow you to respond to stimuli or sensory input. The interneurons are responsible for this reaction, because they receive information from sensory neurons and send that data back to the motor neurons, which are the neurons that tell your body to respond to the shock. When you receive any type of physical shock, your body forms a reaction. In the neocortex, which makes up roughly 80% of the human brain, 20-30% of the neurons are interneurons.įollowing is a good way to think of interneurons. Unlike the peripheral nervous system, the central nervous system – which includes the brain and spinal cord – contains a lot of interneurons. When you think of certain functions, including decision making and learning, they are only possible because of the interaction between these interneurons, which allows the brain to perform these complex functions. These neurons have long axons and they connect the circuits found in one region of the brain to circuits found in another region of the brain. They form these circuits in order to analyze small pieces of information. Local interneurons form circuits with neurons close by and have short axons. See my Affiliate Disclosure for more details. If you click on one and buy something, I may earn from qualifying purchases.

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Types of neurons in the brain