| 释义 |
肺泡fèipào肺的主要组成部分,位置在最小支气管的末端,略呈半球形,周围有毛细血管网围绕。血液在肺泡内进行气体交换。{pulmonary alveolus; major part of the lungs in the form of semi-spherical air cells situated at the end of the finest bronchioles, and covered by a network of blood capillaries, where gas exchange occurs} |