primitive streak
primitive streak defined in 1951 year
primitive streak - primitive streak;primitive streak - Longitudinal thickening in disc-like early embryo of bird or mammal during the stage of gastrulation. The streak is produced by the accumulation of mesoderm as this material moves from its originally superficial position into the interior of the embryo. See also: Blastopore.
near primitive streak in Knolik
| primitive | home letter "P" start from "PR" | primordial germ cells |
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