Microtubules and a contractile ring of microfilaments associated with a cleavage furrow.
D000818:Animals; D002455:Cell Division; D002462:Cell Membrane; D016798:Ciliophora / Q000166:cytology*; D003250:Constriction; D008854:Microscopy, Electron; D008870:Microtubules; D009940:Organoids