1.The antheral tapetum, consisting of monocyte or binucleated cells, degenerated in situ, thus belonging to glandular type.
绒毡层细胞在发育后期由单核分裂为2核,原位解体,为腺质型;
2.Binucleated granulocyte appeared in the stage from promyelocyte to neutrophilic band form with mostly symmetry mirror image characteristics in size and shape.