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  1. Morula Development - Embryology

    • Learn about the morula stage of human and animal embryo development, when cells divide to form a solid mass with a mulberry appearance. Find out about compaction, blastomere division, molecular regul… See more

    Introduction

    (Latin, morula = mulberry) An early stage in post-fertilization development when cells have rapidly mitotically divided to produce a solid mass of cells (12-15 cells) with a "mulberry" appearance. This stage is followed b… See more

    Blastomere Division

    An in vitro study of human blastocyst developmentshowed that those blastomeres that initially divide quickly are more likely to develop to blastocyst stage. A recent study in mice showed that there was no spe… See more

    Model Human Morula Development

    The following figure is from a recent study using video and genetic analysis of in vitrohuman development during week 1 following fertilization. 1. EGA - embryonic genome activation 2. ESSP - embryonic stage–spec… See more

    Morulas in Other Species

    Mouse Morula
    In the mouse, during transition from morula to blastocyst stage, differentiation of the inner cell mass (ICM) and trophectoderm (TE) has been shown to be regulated by the Hippop… See more

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  1. An early stage in post-fertilization development when cells have rapidly mitotically divided to produce a solid mass of cells (16 or more) with a “mulberry” appearance is called the morula stage. The morula stage is the final stage prior to the formation of a fluid-filled cavity called the blastocoel cavity.
    The morula is a stage of post-fertilization development when a fertilized egg that is known as a single-celled zygote, transitions to a mass composed of around 10-30 cells. During in vitro fertilization (IVF), the morula phase typically occurs on day 4 of development post-fertilization.
    www.fertilitysmarts.com/definition/morula/
    A morula is an early stage in the development of animals, including humans, when cleavage is going on and the embryo consists of a solid ball of cells (blastomeres). It is characterized as a ball of 8-16 cells and is formed when the zygote reaches the uterus and becomes a cluster of small cells surrounded by the zona pellucida.
    taylorandfrancis.com/knowledge/medicine-and-hea…
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    Aug 3, 2023 · Learn about the morula stage, an early embryonic stage when cells rapidly divide to form a solid mass of totipotent cells. Find out how morula stage is related to compaction, blastocyst formation, implantation, and …

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  7. Morula | Definition, Formation & Function | Study.com

    Nov 21, 2023 · Learn what a morula is, how it is formed by cell division after fertilization, and what functions it has in embryonic development. A morula is a cluster of 16-32 cells that resembles a mulberry.

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