The perforatorium; an extension of the nuclear membrane of the rat spermatozoon.
D000818:Animals; D004583:Electrons; D008297:Male; D008853:Microscopy; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D009685:Nuclear Envelope; D051381:Rats; D013094:Spermatozoa
MICROSCOPY; MICROSCOPY, ELECTRON; MICROSCOPY, PHASE; SPERMATOZOA