Other cells make up organs, glands, blood, veins, arteries, and bones. A neuron . To serve its three functions, the nervous system includes vast circuits of delicate cells that are elaborately interconnected. In fact, the brain, spinal cord, and nerves throughout the body are all made up of one kind of cell. So does your spinal cord and all the nerves that fan out from the spinal cord to your glands, organs, and muscles.
Neurons are specialized.
Their specific function is to allow our brains to learn, reason, and remember. Through the activity of neurons, the body responds and adjusts to changes in the environment. Those messages consist of chemicals and electrical impulses. Each neuron may have thousands of branches that connect it to other neurons. The branches are called dendrites or axons .