Cell in morula
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morula stage 16 32 cells embryology
A morula is a solid ball of 16 to 32 cells, called blastomeres.
- Forms about day 3 to 4 after fertilization
- Resembles a mulberry (Latin: morum)
- Still enclosed by the zona pellucida
- It later develops a cavity and becomes a blastocyst
Langman's Medical Embryology describes the morula as the stage reached after early cleavage, before blastocyst formation.
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