Term Name:	apical constriction involved in ventral furrow formation
Synonyms:
Definition:	The actin-mediated process that results in contraction of the apical end of a polarized columnar epithelial cell, contributing to formation of a ventral indentation (furrow) from the blastoderm epithelium, which is internalized to form a tube in the interior of the embryo, marking the start of gastrulation.
Ontology:	GO: Biological Process [GO:0110072]    QuickGO    AmiGO