The normal response to a drop in body temperature is peripheral vasoconstricition . 体温下降时正常的反应是周围血管收缩。
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。
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。
To conserve blood that will be needed by muscles, skin vessels constrict while vessels of the muscles dilate . 为了保存肌肉所需要的血液,皮肤血管收缩,而肌肉血管舒张。
Several drugs currently used in the treatment of essential hypertension act by inhibiting sympathetic vasoconstrictor tone . 目前用于治疗原发性高血压的药物中有几种是通过抑制交感性血管收缩的紧张度而起作用的。