Inner ear histology in ILS and ISS mice.

<p>Tolouidin blue-stained plastic sections through the cochlear duct in twelve-week-old ILS and ISS and eight-week-old C3HeB/FeJ (C3H) mice. <b>A,F,K,</b> Cross section through the organ of Corti at the mid-apical region; tm, tectorial membrane; oh, outer hair cell; ih, inner hair cell; sc, supporting cell; tC, tunnel of Corti; sM, scala media; scale bar = 50 µm. <b>B,G,L,</b> Cross section through the spiral ligament at the mid-apical region of the cochlear duct. White arrow indicates a fibrocyte. sL, spiral ligament; scale bar = 50 µm. <b>C,H,M,</b> Cross section through the stria vascularis at the mid-apical region of the cochlear duct. Red arrow, basal cell; white arrow, intermediate cell; green arrow, marginal cell; sV, stria vascularis; scale bar = 10 µm. <b>D,I,N,</b> Cross section through the spiral ganglion near the base of the cochlear duct. Red arrow points to areas of degeneration. sG, spiral ganglion; scale bar = 50 µm. <b>E,J,O,</b> Cross section through the spiral ganglion at the mid-apical region of the cochlear duct. White arrow points to a neuron and the red arrow indicates a Schwann cell. sG, spiral ganglion; scale bar = 50 µm.