Cell Ontology

Last uploaded: June 8, 2026
Id http://purl.obolibrary.org/obo/UBERON_0000307
http://purl.obolibrary.org/obo/UBERON_0000307
Preferred Name

blastula

Definitions
Organism at the blastula stage - an early stage of embryonic development in animals. It is produced by cleavage of a fertilized ovum and consists of a spherical layer of around 128 cells surrounding a central fluid-filled cavity called the blastocoel. The blastula follows the morula and precedes the gastrula in the developmental sequence.
Synonyms
blastula embryo
blastosphere
Type http://www.w3.org/2002/07/owl#Class
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