the orifice of invagination of the endomesodermal cells during the embryonic stages of an organism. [ ]

This is just here as a test because I lose it

Term information


metazoa_core, early_development


dubious for taxon

external definition

A slit-like invagination on the dorsal side of the blastula surface of the embryo where the mesoderm and endoderm move inside the embryo at gatrulation.[AAO]



see also

taxon notes

In protostome development, the first opening in development, the blastopore, becomes the animal's mouth; In deuterostome development, the blastopore becomes the animal's anus

Term relations