I don't understand how specific areas of the brain can contain gray or white matter. The definition of gray matter is a category of nervous tissue with many nerve cell bodies and few myelinated axons, but how is this possible? Aren't nerve cells always complete? In other words, my line of logic says: Nerve cell bodies are part of nerve cells. They are not separate entities. If there are a lot of nerve cell bodies, then there are a lot of nerve cells. Therefore, there are a lot of axons as well. How is gray/white matter distinguised if everything's part of the neuron? Thanks for the help.