一种叫做髓鞘质的脂肪物质包裹和保护这些纤维。
A fatty substance called myelin covers and protects the fibers.
对于多发性硬化而言，免疫系统的攻击目标是包裹着神经、富含脂质的髓鞘。
In the case of multiple sclerosis, the immune system is thought to attack myelin, the lipid-rich sheath coating our nerves.
髓鞘成为空壳样结构，板层结构消失；神经元肿胀较前明显，细胞质内的线粒体肿胀明显。
Myelin sheaths showed shell-like structure, but its lamellar structure disappeared. Swelling of neurons and mitochondria was more obvious than which in 2-hour post injury group.
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