Primitive streak
SNOMED CT
361438007
Primitive streak
Definition
The primitive streak is a structure that forms during the early stages of avian, reptilian and mammalian embryonic development[WP]. the midline ridge of the embryonic epiblast that later develops into mesoderm and endoderm[MP].
Also known as primitive streak - blastopore - germ ring — per UBERON
The Primitive streak is a part of the None.