Neurons are sometimes referred to as brain cells, but they aren't only found in the brain - and they aren't the only type of cell that makes up the brain! In fact, you have one hundred million in your gut alone.Neurons are found in almost every part of the body e.g. every nerve is bundle of axons originating from neurons and connecting to other neurons in, or on the way to, your brain.Within your brain are hundreds of different types of cells e.g. the epithelial cells that make up the cerebral blood vessels and the red and white blood cells that travel within.