| 释义 |
肺循环fèixúnhuán心脏收缩的时候,右心室中含有二氧化碳的血液,经过肺动脉流入肺部,在肺内进行气体交换,排出多余的二氧化碳,吸收新鲜的氧气,经过肺静脉流入左心房,再流入左心室。血液的这种循环叫做肺循环{pulmonary circulation. When the heart contracts, blood containing carbon dioxide in the right ventricle of the heart flows through the pulmonary arteries to the lungs, where excessive carbon dioxide is released and fresh oxygen absorbed, and continues its flow through the pulmonary veins into the left atrium of the heart and then into the left ventricle. This whole process is called pulmonary circulation.}也叫also小循环{xiǎoxúnhuán}。 |