英语词汇“umbilical vesicle”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词

umbilical vesicle

释义

Noun: umbilical vesicle

Membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional
- yolk sac, vitelline sac, vesicula umbilicus

Derived forms: umbilical vesicles

Type of: sac

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