EOG86MF03 GO:0016324 1/64 apical plasma membrane cellular_component "The region of the plasma membrane located at the apical end of the cell." [GOC:curators] EOG86MF03 GO:0007370 1/64 ventral furrow formation biological_process "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." [ISBN:08795694238]