Tuesday, November 27, 2007

Myelin Nation


It's worth noting that much of the brain is NOT made up of neurons - their is more cranial space consisting of myelin and CSF than 'brain cells'. Areas thick with the fatty glia cells that make up the myelin sheat are seen as 'white matter' and are axon rich (also called 'pathways') whereas areas with little myelin are seen as 'gray matter' and conist largely of neuron cell bodies (also called 'nuclei'). Any empty space is filled with CSF, or cerebrospinal fluid.
I found a great resource for teaching/learning body basics - it's called Get Body Samrt.

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