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  Encyclopedia of Keywords > Nature > Life > Animals > Blastula > Blastomeres   Michael Charnine

Keywords and Sections
FOUR VEGETAL BLASTOMERES
REMOVAL
OUTER SURFACE
SHEET
INDIVIDUAL CELLS
BLASTOMERE
EMBRYONIC DEVELOPMENT
INNER CELL MASS
EMBRYO
MORULA
BLASTULA
BLASTOMERES
Review of Short Phrases and Links

    This Review contains major "Blastomeres"- related terms, short phrases and links grouped together in the form of Encyclopedia article.

Definitions

  1. These blastomeres are considered to be totipotent, that is they possess the total potential to make an entire new organism.

Four Vegetal Blastomeres

  1. The four vegetal blastomeres divide unequally to produce four micromeres at the vegetal pole and four macromeres in the middle of the embryo.

Removal

  1. Removal of all the upper blastomeres at the 8-cell stage allowed almost normal embryogenesis from the remaining lower blastomeres and yolk cell mass.

Outer Surface

  1. At the eight-cell stage, the blastomeres become tightly adhered to one another, causing the outer surface to appear smooth.

Sheet

  1. Endoderm: Some blastomeres move together as a sheet to the inside of the embryo, creating an inner germ layer called the endoderm.

Individual Cells

  1. The individual cells in the embryo are termed blastomeres.

Blastomere

  1. If one of these blastomeres is removed from the embryo, neither the removed blastomere nor the remaining cells develop into an individual.

Embryonic Development

  1. The cells that result from the cleavage (the first stage of the embryonic development) are called blastomeres.

Inner Cell Mass

  1. The inner blastomeres will become the inner cell mass and the blastomeres on the surface will later flatten to form the trophoblast.

Embryo

  1. If the embryo is left undisturbed, these inner blastomeres will divide and differentiate to form all the tissues of the child's body.
  2. If one of these blastomeres is removed from the embryo, both the removed blastomere and the remaining cells can develop into individual organisms.

Morula

  1. The morula consists of a number of blastomeres, the cells formed from the fertilized ovum as a result of cell division.
  2. In the initial stage of development, the blastomeres adhere to each other in a mass called a morula.

Blastula

  1. The early stage of a blastula in which the solid mass of blastomeres resembles a mulberry in appearance.
  2. Blastula is like a hollow tennis ball where a cavity called 'Blastocoel' forms due to rearrangement of blastomeres.

Blastomeres

  1. The blastula stage typically features a fluid-filled cavity, the blastocoel, surrounded by a sphere or sheet of cells, also called blastomeres.
  2. The different cells derived from cleavage (up to the blastula stage) are called blastomeres.

Categories

  1. Nature > Life > Animals > Blastula
  2. Nature > Life > Animals > Embryo
  3. Different Cells
  4. Encyclopedia of Keywords > Society > Humans > Morula
  5. Blastocoel
  6. Books about "Blastomeres" in Amazon.com

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  Short phrases about "Blastomeres"
  Originally created: April 04, 2011.
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