Alveolar sacs of Tetrahymena: ultrastructural characteristics and similarities to subsurface cisterns of muscle and nerve.
D000818:Animals; D002462:Cell Membrane / Q000648:ultrastructure; D005614:Freeze Fracturing; D007425:Intracellular Membranes / Q000648:ultrastructure; D008854:Microscopy, Electron; D008928:Mitochondria / Q000648:ultrastructure; D009940:Organoids / Q000648:ultrastructure*; D013768:Tetrahymena / Q000648:ultrastructure*