The blastodisc is a small disc of cytoplasm that sits on top of the yolk. In birds it is a small, circular, white spot ( ... The blastodisc, also called the germinal disc, is the embryo-forming part on the yolk of the egg of an animal that undergoes ... "Definition of BLASTODISC". www.merriam-webster.com. Retrieved 15 October 2022. Gilbert, Scott F. (2006). Developmental biology ...

Lateral section through the mammalian blastodisc. "Definition of AMNIOTE". www.merriam-webster.com. Retrieved 11 May 2022. ...

A blastoderm (germinal disc, blastodisc) is a single layer of embryonic epithelial tissue that makes up the blastula. It ... Blastodisc Embryology Cleavage Gastrulation Gilbert, Scott F. (2000). Early Drosophila Development (6 ed.). Sunderland (MA): ...

The catshark lays eggs in their blastodisc form. The following exhibits a typical developmental timeline (measurements are ...

The embryo forms a disc of cells, called a blastodisc, on top of the yolk. Discoidal cleavage is commonly found in monotremes, ...

Cleavage, or initial cell division, can only occur in a region called the blastodisc, a yolk free region located at the animal ... This type of meroblastic cleavage is called discoidal because only the blastodisc becomes the embryo. In fish, waves of calcium ...

From there the blastodisc, a small cluster of cells in the animal pole of the egg, then undergoes discoidal meroblastic ... Rather, they have small, irregular extracellular spaces that are formed between the cells of the blastodisc sitting atop the ... The shape and formation of the avian blastodisc differs from amphibian, fish, and echinoderm blastulas, but the overall spatial ...

The snake embryo begins as a zygote, undergoes rapid cell division, forms a germinal disc, also called a blastodisc, then ...

... or from the blastodisc in reptiles and birds. The hypoblast gives rise to the yolk sac, which in turn gives rise to the chorion ...

In chick development, the primitive node starts as a regional knot of cells that forms on the blastodisc immediately anterior ...

blastocyst blastodisc blastomere blastopore blastula An early form of the animal embryo generally consisting of a hollow sphere ...