Gray Matter

The Central Nervous System

Gray matter is a major part of the central nervous system, which consists of neuronal cell bodies, neuropil (dendrites and myelinated as well as unmyelinated axons), glial cells (astroglia and oligodendrocytes), synapses and capillaries.


Gray matter contains numerous cell bodies and relatively few myelinated axons, while white matter contains relatively very few cell bodies and is composed chiefly of long-range myelinated axon tracts.  The color difference arises mainly from the whiteness of myelin.  In living tissue, gray matter actually has a very light gray color with yellowish or pinkish hues, which come from capillary blood vessels and neuronal cell bodies.

Gray matter also denotes one’s brain or intellect.

Source: Public Domain

Inspired by


One thought on “Gray Matter”

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s