Everything about Morula totally explained
A
morula (
Latin "morus",
mulberry) is an
embryo at an early stage of
embryonic development, consisting of approximately 12-32
cells (called
blastomeres) in a solid ball contained within the
zona pellucida.
Production
The morula is produced by
embryonic cleavage, the rapid
division of the
zygote. After reaching the 16-cell stage, the cells of the morula differentiate. The inner blastomeres will become the
inner cell mass and the blastomeres on the surface will later flatten to form the
trophoblast. As this process begins, the blastomeres change their shape and tightly align themselves against each other to form a compact ball of cells. This is called compaction and is likely mediated by cell surface adhesion glycoproteins.
Development
In mammals the morula travels to the
uterus around 3-4 days after fertilization, and at about 4 days after fertilization a fluid-filled space called the
blastocoel cavity appears and the morula becomes a
blastocyst.
Additional images
Image:Embryo, 8 cells.jpg|Morula, 8 cell stage
Further Information
Get more info on 'Morula'.
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