: the cavity of the gastrula of an embryo forming a primitive gut. — called also gastrocoel.

What is significance of archenteron?

The primary gut that forms during gastrulation in the developing zygote is known as the archenteron or the digestive tube. It develops into the endoderm and mesoderm of an animal.

What is Neurocoel?

neurocoel in American English

(ˈnʊrəˌsil ; ˈnjʊrəˌsil ) or ˈneuroˌcoele (ˈnʊrəˌsil ; ˈnjʊrəˌsil ) noun. the cavity of the chordate cerebrospinal system, consisting of the ventricles of the brain and the central canal of the spinal cord, regarded as a unit.