| 1. | Vasoconstriction and vasodilatation are separate mechanisms .
血管的收缩和扩张分别具有不同的机理。 |
| 2. | Histamine causes vasoconstriction and increased permeability of small venules .
组织胺能引起血管收缩，并增强小静脉的透性。 |
| 3. | The addition of epinephrine to local anesthetic solutions produces vasoconstriction .
局麻药溶液中加入肾上腺素，使血管收缩。 |
| 4. | Both acute or chronic hypoxia can cause vasoconstriction and vasoconstriction increase
急性或慢性的低氧都能使肺血管收缩，血流阻力增大。 |
| 5. | Bernmof jl . one ? lung ventilation and hypoxic pulmonary vasoconstriction ： implication for anesthetic management . anesth analg 1985 , 64 ： 821 33
陶明哲.缺氧性肺血管收缩体液机制的研究进展.国外医学麻醉学与复苏分册1993 ， 14 ： 196 198 |
| 6. | Wt5hzresults lnmma injection alone can inhibit the na induced vasomotion in vasoconstriction state , while si injection alone can inhibit it in vasodilation state
结果单独静脉注射lnmma可使被诱导出的血管运动抑制于收缩状态，单独静脉注射si可使血管运动抑制于舒张状态。 |
| 7. | Sympathomimetics can elevate the body temperature by two mechanisms . firstly , vasoconstriction decreases skin blood flow and hence heat loss . secondly , metabolic heat production is increased
拟交感神经作用药物会令血管收缩，减少皮肤血液流量以致散热减低，同时会增加代谢性热能的产生，令体温升高。 |
| 8. | Although regional anesthesia , especially central conduction blockade , produces a favorable sympathectomy and increased limb blood flow , compensatory vasoconstriction in non - anesthetized areas may actually produce vaso - occlusive crises in these areas ( 5 )
虽然区域麻醉，特别是中枢传导阻滞可产生有效的交感神经阻滞并增加肢体血流，但是非麻醉部位发生代偿性血管收缩，可能使这些部位发生血管阻塞性危象[ 5 ] 。 |
| 9. | This effect has been hypothesized to occur through an initial reduction in sympathetic outflow from the central nervous system with its associated decrease in vascular resistance , followed by a peripheral vascular receptor mediated increase in vasoconstriction ( 1 , 4 )
该作用被假设发生，通过对来自于中枢神经系统的交感系统的最初抑制，伴有相关的血管阻力的降低，并伴随着外周血管受体介导的血管收缩的增加[ 1 ， 4 ] 。 |
| 10. | Within six hours after an infant is placed in a high - oxygen atmosphere , vasoconstriction of the immature vessels of the retina occurs , which is reversible if the child is immediately returned to air , but irreversible if oxygen - rich therapy is continued
婴儿置于含氧浓度高的空气中6个小时以内，未发育成熟的视网膜血管会发生血管收缩，如果立刻把孩子转移到空气中，这是可逆的，如果富氧治疗继续的话，会变成不可逆的。 |
