blastosphere definition

  • noun:
    • See blastula.
    • A blastula
    • The hollow globe or world formed because of the arrangement associated with blastomeres in the periphery of an impregnated ovum.
    • In embryology: A hollow sphere (vesicular morula) consists of just one level of blastomeres or derivative cells, inclosing a central cavity or blastocœle.
    • By Haeckel limited to the germ-vesicle, vesicular embryo, or blastodermic vesicle associated with Mammalia, which employs after gastrulation, and it is called by him a gastrocystis, or abdominal germ-vesicle. Also referred to as blastula.
    • very early phase of an embryo made by cleavage of an ovum; a liquid-filled sphere whose wall is composed of just one level of cells; with this stage (about eight times after fertilization) implantation when you look at the wall associated with the uterus happens
    • See blastula.
    • A blastula
    • The hollow world or world created because of the arrangement of blastomeres on the periphery of an impregnated ovum.
    • In embryology: A hollow sphere (vesicular morula) made up of just one layer of blastomeres or derivative cells, inclosing a central cavity or blastocœle.
    • By Haeckel restricted to the germ-vesicle, vesicular embryo, or blastodermic vesicle of this Mammalia, which follows after gastrulation, and it is called by him a gastrocystis, or abdominal germ-vesicle. Also known as blastula.
    • early phase of an embryo created by cleavage of an ovum; a liquid-filled sphere whoever wall surface is composed of just one level of cells; during this phase (about eight times after fertilization) implantation in wall associated with the uterus occurs

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