Ear (histology slides)

Cochlea
SM - scala media. roughly triangular in cross-section, with the apex attached to a spicule of bone
SL - spiral limbus
SV - scala vestibuli. originating in the vestibule near the oval window and the base of the stapes; vibrations are conducted towards the apex of the cochlea in the perilymph of the scal vestibuli. SV is located above SM.
ST - scala tympani. below the SM is the perilymphatic space which spiral down from the apex to the secondary TM.
BM - basilar membrane. the membrane separating the SM and the ST. supports the organ of Corti.
SLig - spiral ligament. laterally attached to the basement membrane.
SVasc - stria vascularis. the thickened outer wall of the SM. Is highly vascularized and lined by stratified epithelium.
VM - Reissner's membrane. membrane between the SM and SV. both sides are lined with spimple squamous epithelium.