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Morula

定义 Definition

morula（桑椹胚）：胚胎早期发育阶段的一种实心细胞团，通常在受精后几天形成，外观类似桑椹；随后常会发育为囊胚（blastocyst）。该词主要用于胚胎学与发育生物学语境。

例句 Examples

The embryo reached the morula stage on day four.
胚胎在第4天发育到桑椹胚阶段。

After several rounds of cleavage, the morula forms before the blastocyst begins to develop and implant.
在多次卵裂之后，桑椹胚形成，随后囊胚开始发育并准备着床。

发音 Pronunciation

/mrjl/

词源 Etymology

源自新拉丁语 morula，是拉丁语 morum（“桑椹”）的指小形式，意思是“小桑椹”，用来形容这一阶段胚胎细胞团外观像桑椹的颗粒状结构。

相关词 Related Words

文学与著作中的用例 Literary Works

Langman’s Medical Embryology（《兰曼医学胚胎学》）
The Developing Human: Clinically Oriented Embryology（《人类胚胎学：临床导向》）
Campbell Biology（《坎贝尔生物学》）
Molecular Biology of the Cell（《细胞的分子生物学》）

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