12.2.4.1 POJA-L2623+2644+
3606+2965+3430+2619+2617+2620.
Organ of Corti and innervations in the inner ear
12.2.4.1. POJA-L2623+2644+3606+2965+3430+2619+2617+2620
Title: Organ of Corti and innervations in the inner ear
Description:
(A): Corti's organ, stain toluidine blue semi-thin plastic section, guinea pig. Compare with items in (D).
(B): Spiral ganglion, immunperoxidase staining with AEC and antibodies against neurofilament, 4 days postnatal rat.
Ganglion cell bodies and the single nerve fibers contrast clearly positively.
(C): Spiral ganglion, stain toluidine blue semi-thin plastic section (black and white print), adult rat. Note here the dark-stained myelinated nerve fibers.
(D): Corti’s organ, scheme electron microscopy, human. As a mainstay the following items are shown here:
(1) Cochlear nerve. (5) Phalangeal cells (Deiters).
(2) Membrana tectoria. (6) Outer pillar cells
(3) Inner hair cell (IHC). (7) Inner pillar cells.
(4) Three outer hair cells (OHCs) and their supportive Deiters cells. (8) Lamina basilaris.
(9) Inner tunnel or Corti tunnel with free-traversing nonmyelinated nerve fibers that synaps on the basal poles of IHC and OHCs.
(10) Interdental cells involved in the production of tectorial membrane substance.
(11) Internal spiral tunnel. The striated matrix of the membrana tectoria (2) contains different types of collagen, glycosaminoglycans,
and specific tectorin/otogelin proteins. The membrane is synthesized by interdental cells (10) and extend to the external outer hair cells (OHCs). The tectorial membrane embeds the tips of the tall stereocilia of the hair cells and due to perilymph movement in the scala tympani displacement of basilar membrane and Corti’s organ results in depolarization of the HCs.
(E): Corti's organ, immunoperoxidase staining with AEC and antibodies against laminin, 4 days postnatal rat. All basal lamina-associated structures in the cochlear duct are distinctly positive such as capillaries (stria vascularis), Reissner’s membrane, spiral limbus area,
lamina basilaris and afferent/efferent myelinated nerve fibers.
(F-H): Corti's organ, immunoperoxidase staining with AEC and antibodies against neurofilament, 4 days postnatal rat.
In (F, G) nerve endings near the supporting cells and on the receptor cells. (H) shows free-traversing unmyelinated nerve fibers
through the inner tunnel and Nuel’s space.
Keywords/Mesh: inner ear, Corti’s organ, spiral ganglion, cochlear nerve, neurofilament, laminin, histology, electron microscopy,
POJA collection
Title: Organ of Corti and innervations in the inner ear
Description:
(A): Corti's organ, stain toluidine blue semi-thin plastic section, guinea pig. Compare with items in (D).
(B): Spiral ganglion, immunperoxidase staining with AEC and antibodies against neurofilament, 4 days postnatal rat.
Ganglion cell bodies and the single nerve fibers contrast clearly positively.
(C): Spiral ganglion, stain toluidine blue semi-thin plastic section (black and white print), adult rat. Note here the dark-stained myelinated nerve fibers.
(D): Corti’s organ, scheme electron microscopy, human. As a mainstay the following items are shown here:
(1) Cochlear nerve. (5) Phalangeal cells (Deiters).
(2) Membrana tectoria. (6) Outer pillar cells
(3) Inner hair cell (IHC). (7) Inner pillar cells.
(4) Three outer hair cells (OHCs) and their supportive Deiters cells. (8) Lamina basilaris.
(9) Inner tunnel or Corti tunnel with free-traversing nonmyelinated nerve fibers that synaps on the basal poles of IHC and OHCs.
(10) Interdental cells involved in the production of tectorial membrane substance.
(11) Internal spiral tunnel. The striated matrix of the membrana tectoria (2) contains different types of collagen, glycosaminoglycans,
and specific tectorin/otogelin proteins. The membrane is synthesized by interdental cells (10) and extend to the external outer hair cells (OHCs). The tectorial membrane embeds the tips of the tall stereocilia of the hair cells and due to perilymph movement in the scala tympani displacement of basilar membrane and Corti’s organ results in depolarization of the HCs.
(E): Corti's organ, immunoperoxidase staining with AEC and antibodies against laminin, 4 days postnatal rat. All basal lamina-associated structures in the cochlear duct are distinctly positive such as capillaries (stria vascularis), Reissner’s membrane, spiral limbus area,
lamina basilaris and afferent/efferent myelinated nerve fibers.
(F-H): Corti's organ, immunoperoxidase staining with AEC and antibodies against neurofilament, 4 days postnatal rat.
In (F, G) nerve endings near the supporting cells and on the receptor cells. (H) shows free-traversing unmyelinated nerve fibers
through the inner tunnel and Nuel’s space.
Keywords/Mesh: inner ear, Corti’s organ, spiral ganglion, cochlear nerve, neurofilament, laminin, histology, electron microscopy,
POJA collection