The small depression in the primitive streak that is caudal to the primitive node where the cells of the epiblast initially begin to invaginate during early embryogenesis. [ MP:0009329 ]

This is just here as a test because I lose it

Term information

database cross reference

pheno_slim, early_development

editor note

TODO - check

external definition

The primitive pit is a depression in the center of the primitive node, connecting to the notochord. It consists of part of the primitive streak[Wikipedia:Primitive_pit].