title: The postacrosomal region of the spermatozoa of man and Macaca arctoides.
mesh_terms: D000818:Animals; D002462:Cell Membrane; D002467:Cell Nucleus; D005613:Freeze Etching; D000882:Haplorhini; D006801:Humans; D008251:Macaca; D008297:Male; D008854:Microscopy, Electron; D013094:Spermatozoa / Q000166:cytology*