myelin

/mahy-uh-lin/US // ˈmaɪ ə lɪn //UK // (ˈmaɪɪlɪn) //

髓鞘,髓磷脂,髓质,脊髓灰质炎

Definitions

n.名词 noun

1
Biology.
- : a soft, white, fatty material in the membrane of Schwann cells and certain neuroglial cells: the substance of the myelin sheath.

In MS, the amount and quality of myelin is abnormal, replaced by “sclerotic” plaques, the hallmark of the disease.
This loss of usable myelin results in poor nerve-to-nerve coordination, resulting is a slightly haywire main dashboard.
Between the neurolemma and the axis cylinder is the medullated sheath, composed of a fatty substance known as myelin.
Alveolar cells commonly contain fat-droplets and, less frequently, myelin globules.