White vs Gray Matter

cells of white matter

axons, oligodendrocytes, and schwann cells

cells of gray matter

dendrites and cell bodies

function of gray matter

synaptic transmission

function of white matter

propagate action potential

CNS glial cell

oligodendrocytes

PNS glial cell

Schwann cell

where is gray matter on brain

outer layer

where is white matter on spinal cord

inner layer

gray matter spinal cord

nerve cell bodies arranged in a butterfly shape with anterior and posterior "horns"

white matter spinal cord

This area surrounds the gray matter. It is composed of both myelinated and unmyelinated axons. It has three regions, anterior, lateral, and posterior columns.

how does info enter spinal cord

dorsal

lateral horn

autonomic efferent nerve fibers

glands

smooth and cardiac muscle

ventral horn

somatic efferent neurons

voluntary movement

skeletal muscle