myocomma

例句：

1. 1. Myocommas are small, cylindrical structures found in the brain.
   肌小管是大脑中发现的小圆柱状结构。
2. 2.The myocommas are responsible for transmitting nerve impulses from the brain to the spinal cord.
   肌小管负责将神经冲动从大脑传递到脊髓。
3. 3.Myocommas are also involved in the formation of myelin sheaths around nerve fibers.
   肌小管还参与形成神经纤维周围的髓鞘。