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肺循环非但在摄取氧和排除二氧化碳,维持机体各组织细胞新陈代谢的正常进行中起重要作用。它还可作为贮血库调节全身循环血量,作为循环系的滤器清除进入血液中的栓子及其它细胞等粒子物质。栓子等在肺循环中被肺小动脉或毛细血管所截获,从而难以进入脑、心、肾等重要器官。循环血中的许多生物活性物质,如前列腺素、血管紧张素、组织胺、5-羟色胺等可在肺中合成、转变、贮存或
Pulmonary circulation not only in the intake of oxygen and eliminate carbon dioxide, to maintain the normal metabolism of cells in the body plays an important role. It also acts as a reservoir to regulate the circulation of blood throughout the body and as a filter of the circulation removes particles and other particles that enter the bloodstream from emboli and other cells. Emboli and other pulmonary circulation in the pulmonary arterioles or capillaries intercepted, making it difficult to enter the brain, heart, kidney and other vital organs. Many bioactive substances in circulating blood, such as prostaglandins, angiotensin, histamine, serotonin and the like can be synthesized, transformed, stored or