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微循环是指人体血液流经动脉末梢端,再流到微血管,然后汇合流入小静脉的起始端,这种在微动脉和微静脉之间微血管里的血液循环。微循环的基本功能就是供给细胞血、能量和营养物质,同时带走对人体有害的乳酸、二氧化碳等代谢废物,保持良好的内环境和生命活动。此外,微循环还起着“第二心脏”的作用,因为机体仅靠心脏的收缩力是不可能将心脏内的血液送到组织细胞的,必须有微血管进行调节,才能将血液灌注到细胞内。
Microcirculation refers to the human body blood flow through the distal tip of the artery, and then flowed to the capillaries, and then merged into the beginning of the venule, which circulates in the capillaries between the arterioles and the venules. The basic function of microcirculation is to supply cell blood, energy and nutrients while taking away the metabolic waste of lactic acid, carbon dioxide and other harmful substances that are harmful to the human body, and maintaining good internal environment and life activities. In addition, the microcirculation also plays the role of “second heart ”, because the body can not rely on the contraction of the heart to send the blood inside the heart to the cells of the tissue, it must be microvascular to regulate, in order to perfusion of blood to in the cell.