[The spiral ganglion of the rat].
Explore the source record for details and available documents.
Animals↗
Biomedical subjects
W Firbas
Publications and source records attributed to W Firbas.
[Number and arrangement of ganglia cells in the spiral ganglion of the guinea pig].
Explore the source record for details and available documents.
Animals↗
[The hip joint of the ostrich as a biologic model for orthopedic problems].
Explore the source record for details and available documents.
Animals↗
[Quantitative studies on the spiral ganglion of guinea pigs after exposure to noise].
Explore the source record for details and available documents.
Animals↗
[Ontogenesis of adhaesio interthalamica (massa intermedia) in man].
Explore the source record for details and available documents.
Anatomy, Comparative↗
[On the cochlea of insectivora].
Explore the source record for details and available documents.
Animals↗
[On the postnatal growth of the bulla ethmoidalis in bears].
Explore the source record for details and available documents.
Age Factors↗
[Cochlea of Soricidae. (Its number of windings and absolute size)].
Explore the source record for details and available documents.
Animals↗
The efferent innervation in the region of inner hair cells in the organ of Corti.
The efferent innervation of the inner hair cells in Corti's organ of the laboratory rat and of a bat was investigated with help of histochemical staining of the inner spiral bundle. The area of acetylcholinesterase-positive fibres in the inner spiral bundle regions was measured. The bulk of the efferent fibres lie in the middle part of the cochlea. Towards the apical and lower basal turns a distinct decrease in the number of fibres was observed.
Acetylcholinesterase↗
Melanocytes in the modiolus of the guinea pig cochlea.
The cochleae of pigmented and albinotic guinea pigs aged 6-8 weeks were examined by electron microscopy for melanocytes in the modiolus. Two different types of melanocyte were observed: i) The first (Type A) was characterized by spherical, uniformly pigmented stage IV melanosomes. No signs of melanogenesis were seen in this perivascular pigment cell form, which is found mainly in the region of the cochlear plexus. ii) The second, very rarely observed type of melanocyte (Type B) was characterized by fusiform to oval melanosomes in various stages of maturation. Connective tissue cells containing fusiform to oval melanosomes enclosed in membrane-bound vacuoles were frequently found. These two types can be regarded as corresponding to uveal (Type A) and dermal (Type B) melanocytes. The connective tissue of the cochlear plexus seems to be derived from the leptomeninx.
Animals↗
[The peripheral olivocochlear bundle in laboratory rats].
Explore the source record for details and available documents.
Acetylcholinesterase↗
[Acethylcholinesterase activity in the organ of corti in bats].
Explore the source record for details and available documents.
Acetylcholinesterase↗
[Streptomycin-induced damage of the spiral ganglion].
The neuronal density in the spiral ganglion was investigated in normal and in streptomycin-intoxicated guinea pigs. Streptomycin was administered in a dose of 250 mg/kg for 21 days. 6 weeks after the streptomycin exposure a histological examination revealed a decrease in ganglion cell density in the spiral ganglion, with maximum loss in the apical portion of the ganglion. As mechanisms of the ototoxic effect, a secondary degeneration of spiral ganglion cells after hair cell loss or a primary neurotoxic degeneration are discussed.
Animals↗