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al·lan·to·is 英əˈlæntəʊɪs美əˈlæntoɪsAHDə-lănʹtō-ĭs ＳBNC¹⁷³⁹⁹⁵⁺²
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n.尿膜⁵⁰;尿囊⁵⁰复数allantoides形容词allantoic名词复数allantoides
生命活动的调节
Noun:
the vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates reptiles, birds and mammalschick embryo allantois鸡胚尿囊allantois chorioidea医 尿囊绒毛…
allant-香肠-oiS,⇒n.尿膜⁵⁰;尿囊⁵⁰ The highly vascular fetal membrane that consists of the fused chorion and allantois, found adjacent to the eggshell in reptiles and birds and constituting the placenta in most mammals.
由融合的绒毛膜和尿囊组成的富含血管的胎膜组织，存在于爬行类动物和鸟类的蛋壳附近，并且构成大多数哺乳动物的胎盘。 poptool |