| Type | MGI:General | Description | SEM analysis showed a disorganized anterior acrosome and absence of a distinct equatorial segment, post-acrosomal sheath, ventral spur, and sharp hook rim TEM imaging showed that some step 8 spermatids contain highly amorphous, fragmented acrosomal vesicles and/or detached acrosomal granules in step 9-10 spermatids, the posterior edge of the acrosome is no longer juxtaposed to the perinuclear ring of the manchette, thus widening the groove belt and deforming the underlying nuclear lamina |
