morula

Embryo at an early stage

Entityclass of anatomical entity embryonic stageQ690632

Instance of: class of anatomical entity
, embryonic stage
Subclass of: embryogenesis
, particular anatomical entity

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

In embryology, cleavage is the division of cells in the early development of the embryo, following fertilization but before amniogenesis. The zygotes of many species undergo rapid cell cycles with no significant overall growth, producing a cluster of cells the same size as the original zygote. The different cells derived from cleavage are called blastomeres and form a compact mass called the morula. Cleavage ends with the formation of the blastula, or of the blastocyst in mammals.

Overview

All data

24 statements · 21% with external sources · numbers in brackets are citations

Has effect: blastocyst
Followed by: blastula
Follows: zygote

On other databases

17 identifiers linking morula across the web's reference databases

Data quality

statements

21%

externally sourced

Source last edited September 25, 2026. AIDB refreshes this page daily.

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AIDB. (2026). morula (Q690632). Retrieved from https://aidb.si/e/morula-Q690632