archenteron

American  

[ahr-ken-tuh-ron] / ɑrˈkɛn təˌrɒn /

noun

Embryology.

plural

archentera

1. the primitive enteron or digestive cavity of a gastrula.

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archenteron British  

/ ɑːˈkɛntəˌrɒn, ˌɑːkənˈtɛrɪk /

noun

1. the cavity within an embryo at the gastrula stage of development that eventually becomes the digestive cavity

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Other Word Forms

• archenteric adjective

Etymology

Origin of archenteron

1875–80; arch- ² + enteron ( def. )

Example Sentences

The archenteron develops into the alimentary canal, and a mouth opening is formed by invagination of ectoderm at the pole opposite the blastopore of the gastrula.

From Textbooks • Jan. 1, 2015

The space occupied by the yolk corresponds to the archenteron or primitive digestive cavity; and the opening at the end to the primitive mouth or blastopore.

From The Whence and the Whither of Man A Brief History of His Origin and Development through Conformity to Environment; Being the Morse Lectures of 1895 by Tyler, John Mason

The archenteron gives off two lateral pounchs and thus becomes trilobed.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" by Various

We naturally assume, from what we have learnt, that the next stages will be the formation of a hollow blastosphere, invagination, a gastrula forming mesoblast by hollow outgrowths from the archenteron, and so on.

From Text Book of Biology, Part 1: Vertebrata by Wells, H. G. (Herbert George)

This is the primitive gut-cavity or the gastric cavity of the gastrula, progaster or archenteron.

From The Evolution of Man — Volume 1 by Haeckel, Ernst Heinrich Philipp August