any membrane that functions for the protection or nourishment of respiration or excretion of a developing fetus
fetal membrane 例句
英汉例句
Placenta previa, premature rupture of fetal membrane (PROM), multiple pregnancy and maternal chronic hypertension are the main rlated factors of premature delivery;
新生儿窒息的危险因素有胎儿宫内发育迟缓,母亲孕期并发妊高征和胎儿窘迫。
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.