The capillary density of the central tegmental tract is the highest among the tracts observed and that of the pyramidal tract is the lowest .
纤维束中以 被盖中央 束的血管密度最高，锥体束的 血管密度最低。
The lateral group supplies the lateral lemniscus central tegmental tract and reticular formation .
外侧群动脉分布于外侧丘系、中央 束和网状结构；
被盖束