acrosomal vesicles

acrosomal vesicles

a structure participating in the conversion of the spermatid to the spermatozoon. Proacrosomal granules coalesce to form a single large vesicle which contains the acrosome. The vesicle collapses on the nucleus forming the head cap of the spermatozoon.
References in periodicals archive ?
However, there was a significant decrease in sperm entry into the cytoplasm after binding by sperm that had lost their acrosomal vesicles prior to binding.
9, black bars), most sperm still exhibited a normal head bearing acrosomal vesicles with no anterior projections.
Store-operated calcium channels trigger exocytosis of the sea urchin sperm acrosomal vesicle.