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.
血清素系强力血管收缩剂，也是一种神经介质，集中在脑内某些部分，特别是中脑和下视丘。
A strong stimulator of blood-vessel constriction and a neurotransmitter, serotonin concentrates in certain brain areas, especially the midbrain and hypothalamus.
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.
急性缺氧时，皮肤、腹腔内脏交感神经兴奋，缩血管作用占优势，故血管收缩；
When acute anoxia, the skin, the abdominal cavity internal organs nerve is excited, shrinks the blood vessel function to get the advantage, therefore vasoconstriction;
沈阳东新-主治：促进骨质形成，维持神经传导，肌肉收缩、毛细血管正常渗透。
Shenyang East New - Indications: to promote bone formation and maintenance of nerve conduction, muscle contraction, normal capillary permeability.
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.
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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