hypoblast

American  

[hahy-puh-blast] / ˈhaɪ pəˌblæst /

noun

Embryology.

1. the endoderm.

2. the cells entering into the inner layer of a young gastrula, capable of becoming endoderm and, to a certain extent, mesoderm.

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hypoblast British  

/ ˈhaɪpəˌblæst /

noun

1. Also called: endoblast.  embryol the inner layer of an embryo at an early stage of development that becomes the endoderm at gastrulation

2. a less common name for endoderm

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Other Word Forms

• hypoblastic adjective

Etymology

Origin of hypoblast

First recorded in 1820–30; hypo- + -blast

Example Sentences

They designed stem cell models to study formation of yolk sac founders, called hypoblast.

From Science Daily • May 31, 2024

The paper is entitled 'Naive pluripotent stem cell-based models capture FGF-dependent human hypoblast lineage specification' and is published in Cell Stem Cell.

From Science Daily • May 31, 2024

The key discovery, published in Cell Stem Cell, is pinpointing a critical signal that acts during a short window of time, less than one day, to trigger cells to become hypoblast.

From Science Daily • May 31, 2024

The first layer is the endoderm, a sheet of cells that displaces the hypoblast and lies adjacent to the yolk sac.

From Textbooks • Jun. 19, 2013

This cavity is the primitive alimentary cavity or archenteron; the inner or invaginated layer is the hypoblast; the outer the epiblast; and the embryo, in this stage, is termed a gastrula.

From Darwiniana : Essays — Volume 02 by Huxley, Thomas Henry