High-voltage electron microscopic observations on the suprastructure of the macula utricle.

Thick sections of the suprastructure of the utricular macula of the guinea pig were observed by high-voltage electron microscope. Whole views and the relationship of the otoconia, the otoconial membrane and the sensory ciliary bundles became very clear. In addition, stereo micrographs were even more helpful for simultaneously recognizing this three-dimensional relationship.