英语语法分析

In this review, the distribution and physiologic functions of endogenous opioid peptides in hypothalamus were discussed.

本文主要对内阿片肽在下丘脑中的分布特点及生理功能作了介绍。

The research team discovered changes in mu opioid receptors and dopamine transporters of the brain -- areas important to reward pathways.

研究团队发现在的末梢神经及大脑的多巴胺传输中，区域对酬谢路径非常重要。

It appears to involve more primitive aspects of the brain, activating deep structures that may block pain at a spinal level — similar to how opioid analgesics work.

这似乎涉及到大脑更原始的问题，激活深层结构可能会阻止在脊椎级的疼痛-与阿司匹林片类镇痛药的作用相似。