Archenteron

As archenteron ( gr ἀρχή, arché =, start ' and ἔντερον, enteron =, intestines ') or primitive gut is referred to in embryogenesis one arising during gastrulation cavity that opens to the outside through the blastopore ( blastopore ). From the archenteron ultimately forms the digestive tract of the corresponding organism.

Description

The gastrulation is a section of the embryogenesis of multicellular organisms. In this stage of development of Blastulawand formed by invagination ( intussusception ), the gastrula. This creates a double-wall structure with the two cotyledons ectoderm (outside) and endoderm ( inside). During the ectoderm forms the outer surface of the embryo and later it forms the external body covering, the endoderm forms the embryonic primitive gut, the archenteron. From the primitive gut formed in the course of embryogenesis of the digestive tract and internal organs.