所以，神经元以及支持细胞会对血管的收缩和舒张产生相应的反应。
Also, neurons and support cells called glia may react to the mechanical forces of blood vessels expanding and contracting.
血管紧张素ii是已知的最强烈的血管收缩剂之一，它对中枢神经系统及肾上腺也有活性，能刺激肾上腺素分泌，导致钠潴留。
Angiotensin II is one of the most potent vasoconstrictors known. It is also active in the central nervous system and adrenal glands and stimulates aldosterone secretion, resulting in salt retention.
其具有双向调节脑血管痉挛收缩和舒张的作用，对血管神经性头痛具有显 著的疗效。
The medicine combination can regulated the contraction and the relaxation of cerebral vasospasm in bidirectional way and has significant curative effect on the angioneurotic headache.
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