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Inner cell mass information


Inner cell mass
Blastocyst with an inner cell mass and trophoblast
Details
Carnegie stage3
Days6
PrecursorBlastocyst
Gives rise toEpiblast, hypoblast
Identifiers
Latinembryoblastus; massa cellularis interna; pluriblastus senior
MeSHD053624
TEcell mass_by_E6.0.1.1.2.0.4 E6.0.1.1.2.0.4
FMA86557
Anatomical terminology
[edit on Wikidata]

The inner cell mass (ICM) or embryoblast (known as the pluriblast in marsupials) is a structure in the early development of an embryo. It is the mass of cells inside the blastocyst that will eventually give rise to the definitive structures of the fetus. The inner cell mass forms in the earliest stages of embryonic development, before implantation into the endometrium of the uterus.[1] The ICM is entirely surrounded by the single layer of trophoblast cells of the trophectoderm.

  1. ^ Gilbert, Scott F. (2000). "Early Mammalian Development". Developmental Biology. 6th edition. Retrieved 13 May 2022.

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Inner cell mass

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The inner cell mass (ICM) or embryoblast (known as the pluriblast in marsupials) is a structure in the early development of an embryo. It is the mass of...

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Blastocyst

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possesses an inner cell mass (ICM) also known as the embryoblast which subsequently forms the embryo, and an outer layer of trophoblast cells called the...

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Embryonic stem cell

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Embryonic stem cells (ESCs) are pluripotent stem cells derived from the inner cell mass of a blastocyst, an early-stage pre-implantation embryo. Human...

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Epiblast

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known as the primitive ectoderm) is one of two distinct cell layers arising from the inner cell mass in the mammalian blastocyst, or from the blastula in...

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Trophoblast

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Greek trephein: to feed; and blastos: germinator) is the outer layer of cells of the blastocyst. Trophoblasts are present four days after fertilization...

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Hypoblast

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embryology, the hypoblast is one of two distinct layers arising from the inner cell mass in the mammalian blastocyst, or from the blastodisc in reptiles and...

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Blastocoel

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mass fate and the external layer becoming trophectoderm. The inner cell mass will go on to become the actual embryo. The external, surrounding cells develop...

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Stem cell

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roughly 50 to 150 cells make up the inner cell mass during the blastocyst stage of embryonic development, around days 5–14. These have stem-cell capability....

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Animal embryonic development

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and an inner cell mass, from which the embryo is developed. Fluid collects between the trophoblast and the greater part of the inner cell-mass, and thus...

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Interspecific pregnancy

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trophoblastic cells, are exposed to the antibodies, only these cells will be destroyed by subsequent exposure to complement. The remaining inner cell mass can be...

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Cell potency

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a 16-cell stage, the totipotent cells of the morula differentiate into cells that will eventually become either the blastocyst's Inner cell mass or the...

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Human embryonic development

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of forming the blastocyst. Cells differentiate into an outer layer of cells called the trophoblast, and an inner cell mass. With further compaction the...

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Blastulation

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differentiated inner cell mass and an outer trophectoderm. The blastula (from Greek βλαστός (blastos meaning sprout)) is a hollow sphere of cells known as blastomeres...

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Bilaminar embryonic disc

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structure of cells formed in an embryo. In the development of the human embryo this takes place by day eight. It is formed when the inner cell mass, also known...

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Amniotic sac

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nutrients and protection to the developing embryo. They form from the inner cell mass; the first to form is the yolk sac followed by the amnion which grows...

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Somatic cell nuclear transfer

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stage is developed by the egg to help create embryonic stem cells from the inner cell mass of the blastocyst. The first mammal to be developed by this...

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Blastomere

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the 32-cell stage. There are two main models for differentiation that determine which blastomere cells will divide into either the inner cell mass or the...

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Cellular differentiation

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cells called the inner cell mass. The cells of the inner cell mass go on to form virtually all of the tissues of the human body. Although the cells of...

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Trilaminar embryonic disc

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(during gastrulation) from the epiblast (a portion of the mammalian inner cell mass). "Embryonic Period (Weeks 3-8)". www.med.umich.edu. Retrieved 11 June...

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Glossary of developmental biology

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diploid somatic cells and haploid gametes. diverticulum ectoderm embryo embryo transfer embryoblast Another name for the inner cell mass, i.e. that portion...

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Germ layer

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blastocyst, consisting of an outer layer called a trophoblast, and an inner cell mass called the embryoblast. Filled with uterine fluid, the blastocyst breaks...

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Pluriblast

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pluriblast is a pluripotent population of cells in the embryogenesis of marsupials, called the inner cell mass in eutherians. The pluriblast is distinct...

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Leukemia inhibitory factor

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the inner cell mass. As embryonic stem cells are derived from the inner cell mass at the blastocyst stage, removing them from the inner cell mass also...

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