archenteron

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archenteron

 [ahrk-en´ter-on]
the central cavity that is the provisional gut in the gastrula; the primordial digestive cavity of the embryo.

primordial gut

a flat sheet of intraembryonic endoderm that will change into a tubular gut due to the folding of embryonic body-head, tail, and lateral body folds.

archenteron

(är-kĕn′tə-rŏn′, -tər-ən)
n.
The central cavity of the gastrula, which ultimately becomes the intestinal or digestive cavity.

ar′chen·ter′ic (är′kĕn-tĕr′ĭk) adj.

archenteron

The embryonic digestive tract.
Archenteronclick for a larger image
Fig. 44 Archenteron . Formation of the archenteron in an amphibian embryo.

archenteron

that part of the developing embryo of animals (BLASTULA) formed by an invagination of MESODERM and ENDODERM cells into the blastocoel which ultimately forms the gut. The archenteron opens to the exterior via the blastopore.