Membranes as observed in frozen sections.
D000818:Animals; D002736:Chloroplasts / Q000648:ultrastructure*; D005614:Freeze Fracturing; D005629:Frozen Sections; D008566:Membranes / Q000648:ultrastructure*; D051379:Mice; D008867:Microtomy; D008931:Mitochondria, Muscle / Q000648:ultrastructure*; D009206:Myocardium / Q000648:ultrastructure; D009413:Nerve Fibers, Myelinated / Q000648:ultrastructure; D013194:Staining and Labeling