The acrosomal zonule.
A structure associated with the developing acrosome during spermiogenesis in the rat and the Chinese hamster is described. The acrosomal zonule first appears in the cap phase of spermiogenesis and can be detected at all stages of development until after spermiation. The role of the acrosomal zonule is discussed.
D000177:Acrosome / Q000648:ultrastructure*; D000818:Animals; D006224:Cricetinae; D003412:Cricetulus; D007425:Intracellular Membranes / Q000648:ultrastructure; D008297:Male; D008854:Microscopy, Electron; D009685:Nuclear Envelope / Q000648:ultrastructure; D051381:Rats; D013091:Spermatogenesis; D013094:Spermatozoa / Q000648:ultrastructure*