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Embryonic Structures > Cleavage Stage, Ovum

Preferred term

Cleavage Stage, Ovum  

Type

  • Topical Descriptor

Broader concept

Entry terms

  • Ovum Segmentation Stage
  • Ovum Segmentation Stages
  • Segmentation Stage, Ovum
  • Segmentation Stages, Ovum

Scope note

  • The earliest developmental stage of a fertilized ovum (ZYGOTE) during which there are several mitotic divisions within the ZONA PELLUCIDA. Each cleavage or segmentation yields two BLASTOMERES of about half size of the parent cell. This cleavage stage generally covers the period up to 16-cell MORULA.

History note

  • 80

In other languages

URI

http://www.yso.fi/onto/mesh/D002970

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RDF/XML TURTLE JSON-LD Created 4/17/79, last modified 7/9/07