When viewed from a microscope, there is no striation presented in the muscle, and moreover, since it is no controlled by our willpower, it is called involuntary, nonstriated muscle.
Under the phase-contract microscope, cell multi-l ayer was shown to be a refractile sheet, which means the capacities of biomateri al to attract cell and maintain the cell attachment.
Van Leeuwenhoek was forced to show his microscopes to various political and religious personalities they sent to prove he was of sound mind and they finally believed him.