Fig. 4.

SEM and TEM of the human BM. a Limbus dentate cells and BM viewed from endolymph side. b Framed area in (a) shown in higher magnification. The limbus dentate cells are seen (upper aspect) as well as the habenula perforata. c BM attachment to the spiral ligament at basilar crest (arrows). d Surface view shows anchoring of BM to the spiral ligament (SL). e Low-power TEM of human organ of Corti at the low-frequency region and the tympanic cover layer (TCL). f Higher-power TEM of the BM including the TCL