The Distribution of Microtubules in the Vestibular Sensory Cells

Abstract

Microtubules present in most living cells and play a great number of roles. Longitudinal and transverse sections were made in the vestibular sensory cells of the guinea pig, and the distribution of microtubules were studied with the electron microscope. The microtubules were especially located in the-apical region of the cell and the microtubules population was much more inportant, in the type I cells than in the type II cells. In the bottom region, microtubules were found. The results indicate that in vestibular sensory cells microtubules are involved in the transmission of apical biochemical changes toward the basal structure.