Organ Corti Blatrix; Lenoir, Pujol -Inner hair cell -Outer hair cells -TunnelCorti -Basilar membrane -Reticular lamina -Tectorial membrane -Deiters' cells -SpaceNuel -Hensen's cells -Inner spiral sulcus basal turn mammalian cochlea, sensory cells: inner (IHC: )outer hair cells (OHCs: ) tunnel Corti tectorial membrane, floating endolymph hair cell stereocilia OHC tallest stereocilia. IHC support cells OHC "seated" Deiters' cells ,lateral membrane corticolymph perilymph fills tunnel spacesNuel . cuticular plate hair cells, headpillars, phalangeal processes Deiters' cells apical membrane support cells, Hensen's cells , reticular lamina sealing endolymphatic compartment. basilar membrane , nerve fibers reachleave . """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" Guinea-pig organ Corti (mid-base)SEM surface hair cells planefracture. External OHCs, remanants marginal net tectorial membrane. OHCs bodies, tunnel Corti nerve fiberscrossing medial efferent fibers, thinnest (green ) running floor tunnelspiral afferent fibers. Bar: µm. """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" Nomarski optics Mid basal cochlea SEM pictures baseapex. increasing apex, reticular lamina basilar membrane. Hypertrophy Hensen's cells lipid inclusions: apical picture. . ALTSCHULER, R.A., BOBBIN, R.P., HOFFMAN, D.W., eds, NeurobiologyHearing: Cochlea, Raven Press, New York, . . BREDBERG, G., ADES, H.W., ENGSTRöM, H. Scanning electron microscopy normalpathologically altered . In: Inner Ear Studies. Acta Otolaryngol. (Stockh.) Suppl. , -, . . DALLOS, P., POPPER, A.N., FAY, R.R. cochlea. Springer HandbookAuditory Research Vol. , , Springer Verlag, New York. . ENGSTRöM, H., ADES, H.W. &ERSSON, A. eds, Structural Pattern Organ Corti. Almqvist & Wiksell, Stockholm, . . PICKLES, J.O. Recent advancescochlear physiology. Prog. Neurobiol., , -, . . PUJOL, R. Anatomie et physiologie de la cochlée. Arch Int Phys Bioch , -, A-A, . . SANTOS-SACCHI, J. Cochlear physiology. In: Physiology Ear, A.F. Jahn J. Santos-Sacchi, eds, Raven Press, New York, pp. -, . . SPOENDLIN, H. Organization Cochlear Receptor, AdvancesOto-Rhino-Laryngology, Vol. , , L. Rüedi, ed, Karger, Basel, New York. . ULFENDAHL, M. Mechanical responses mammalian cochlea. Prog. Neurobiol., , -, .