单词 | 细胞分泌 |
释义 | 〔surfactant〕A substance composed of lipoprotein that is secreted by the alveolar cells of the lung and serves to maintain the stability of pulmonary tissue by reducing the surface tension of fluids that coat the lung.表面活性剂:一种由脂蛋白组成的物质,是由肺部的肺泡细胞分泌的,通过减小肺部表面的液体表面张力来维持肺组织的稳定性〔pheochromocytoma〕A usually benign tumor of the adrenal medulla or the sympathetic nervous system in which the affected cells secrete increased amounts of epinephrine or norepinephrine.嗜铬细胞瘤:肾上腺髓质或交感神经系统的一种通常为良性的肿瘤,其中这种患病的细胞分泌会增加肾上腺素与正肾上腺素的数量 |
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