In the structure of a typical angiosperm ovule, what is the name of the small opening in the integuments at the apex of the ovule?

The micropyle serves as the entry point for the pollen tube during fertilization in angiosperms (flowering plants) or as the route for water absorption during germination in gymnosperms (non-flowering plants). Its primary function is to facilitate the exchange of gases, water, and nutrients between the seed's interior and the surrounding environment.