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Cleavage Stage, Ovum

"Cleavage Stage, Ovum" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

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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.


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This graph shows the total number of publications written about "Cleavage Stage, Ovum" by people in this website by year, and whether "Cleavage Stage, Ovum" was a major or minor topic of these publications.
Bar chart showing 5 publications over 5 distinct years, with a maximum of 1 publications in 1992 and 1994 and 2001 and 2008 and 2014
To see the data from this visualization as text, click here.