Observation of Cochlear Sensory Hairs in the Neonatal Hamster
The authors performed the observation of the cochlear sensory hairs in the neonatal hamster by the scanning electron microscope from the first day to the sixteenth day after birth, by surface preparation technique under the magnifying glass. The results were as follows : The cochlear sensory hairs that were observed as the microvilli in the initial stage grew up to the stereocilia of adult hamster, showing the regular pattern of the development of the cochlear sensory hairs. The time of the completion of those development was judged to be eleven, thirteen and sixteen days after birth, in each basal, middle and apical turn of the basilar membrane.
