EPIBLAST Meaning and
Definition
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Epiblast refers to a specific layer of cells found in the early embryonic development of animals, particularly during the blastocyst stage of mammalian embryos. It is a distinct group of cells that forms one of the germ layers, representing the outermost layer of the embryo. The formation of the epiblast occurs shortly after fertilization and subsequent cell divisions.
During the process of embryogenesis, the epiblast differentiates and gives rise to several important structures within the developing embryo. It contributes to the formation of the three primary germ layers: ectoderm, mesoderm, and endoderm. These germ layers are crucial for the development of various tissues and organs, including the nervous system, muscles, and internal organs.
The epiblast initially forms a flat sheet of cells within the blastocyst, and later goes through a process called gastrulation, during which it invaginates to form the embryonic disc. This disc eventually develops into the three germ layers mentioned earlier.
In summary, the epiblast is an essential component of early embryonic development, playing a vital role in forming the fundamental structures and tissues of the embryo. Its differentiation and subsequent formation of germ layers are central to the overall development of an organism.
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The outer layer of the blastoderm, the ectoderm; from it are developed the common integument and the external parts of the special sense organs.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for EPIBLAST
- wpiblast
- spiblast
- dpiblast
- rpiblast
- 4piblast
- 3piblast
- eoiblast
- eliblast
- e-iblast
- e0iblast
- epublast
- epjblast
- epkblast
- epoblast
- ep9blast
- ep8blast
- epivlast
- epinlast
- epihlast
Etymology of EPIBLAST
The word "epiblast" is derived from the combination of two Greek roots: "epi" and "blastos".
1. "Epi" (ἐπί) means "on", "upon", or "over" in Greek.
2. "Blastos" (βλαστός) means "germ" or "bud" in Greek.
In embryology, the term "epiblast" refers to the outermost layer of the early embryonic disc, which gives rise to the ectoderm (outer layer) and mesoderm (middle layer) during development. The word "epiblast" essentially describes a layer of cells that form on or over the germinal layer, which becomes the source of various tissues and organs in the embryo.
Similar spelling words for EPIBLAST
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