Assertion: gray matter's axon | /r/HasProperty | coated in myelin
Facets:
Source sentences:
text: Most axons are coated in myelin - a white, fatty insulating cover that helps nerve signals travel quickly and reliably.
text: In contrast to gray matter, in which the cell bodies of neurons predominate, the term white matter refers to areas of the brain where there is a preponderance of axons coated with myelin.