外侧丘系:斜方体纤维行至被盖部的前外侧,在上橄榄核的外方折向上行,称为外侧丘系。外侧丘系是听觉通路的一部分,以后它在被盖部的外缘上行,经过中脑,止于丘脑的内侧膝状体。
外侧群动脉分布于外侧丘系、中央束和网状结构;
The lateral group supplies the lateral lemniscus, central tegmental tract and reticular formation.
至下丘脑尾侧部行于被盖腹侧区及其背外侧,在内侧丘系与大脑脚间。
At caudal hypo-thalamus level, it runs in ventral tegmental area and a region between medial lemniscus and cerebral peduncle.
前正中群和前外侧群动脉主要来自脊髓前动脉,前正中群动脉供应舌下神经核、内侧丘系及部分锥体束等中缝两侧结构;
The arteries of the anteromedian and anterolateral groups arose from the anterior spinal artery, and also from the vertebral artery and basilar artery.
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