- the primitive enteron or digestive cavity of a gastrula.
Origin of archenteron
Also called primitive gut.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for archenteron
They form the rudiment of the notochord, which, as in Amphioxus, is derived from the dorsal wall of the archenteron.
It soon becomes shut off from the slit-like posterior part of the archenteron.
In the tail the notochord is shewn at ch, the muscles at m, and the solid remnant of the ventral wall of the archenteron at dd.
It has already been stated that the lateral walls of the archenteron in the tail give rise to muscular cells.
The mesoblast is developed from the walls of hollow outgrowths of the archenteron, the cavities of which become the body cavity.
- the cavity within an embryo at the gastrula stage of development that eventually becomes the digestive cavity
C19: from Greek arkhē beginning + enteron intestine
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