Freeze fracture and numerical analyses of the spiral ganglion cells
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Summary
The freeze-fracture technique was used to study the spiral ganglion cell population in the adult mouse. The majority of the ganglion cells (type I) had a smooth cell surface. Interspersed among these first ganglion cells, a small number of other ganglion cells (type II) showed considerable membrane specializations and were morphologically reminiscent of nerve terminals previously described only in human temporal bones. Calculations of the number of the two types of spiral ganglion cells in sectioned material showed that the adult mouse spiral ganglion comprises of 3%–4% unmyelinated type II ganglion cells.
Key words
Spiral ganglion Nerve terminal Mouse Freeze fracturePreview
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References
- 1.Anniko M (1983) Early development and maturation of the spiral ganglion. Acta Otolaryngol (Stockh) 95:263–276Google Scholar
- 2.Anniko M, Arnesen AR (1987) Cochlear nerve topography and fiber spectrum in the mouse. Acta Otolaryngol (Stockh) (in press)Google Scholar
- 3.Anniko M, Pequignot JM (1987) Catecholamine content of cochlear and facial nerves. Acta Otolaryngol (Stockh) (in press)Google Scholar
- 4.Anniko M, Wróblewski R (1984) The freeze fracture technique in inner ear research. Scan Electron Microsc 4:2067–2075Google Scholar
- 5.Arnesen AR, Kjelsberg-Osen K (1978) The cochlear nerve in the cat: topography, cochleotopy, and fiber spectrum. J Comp Neurol 178:661–678Google Scholar
- 6.Bagger-Sjöbäck D, Rask-Andersen H, Lundquist PG (1982) Intercellular junctions in the epithelium of the endolymphatic sac: a freeze-fracture and TEM study of the guinea pigs labyrinth. In: Vosteen CH, Morgenstern C, Schuknecht HF, Wersäll J (eds) Ménière's disease. Thieme, Stuttgart New YorkGoogle Scholar
- 7.Bagger-Sjöbäck D, Lundquist PG, Galey FR, Ylikoski J (1983) Human vestibular epithelia. A freeze fracturing and TEM study. Am J Otol 4:203Google Scholar
- 8.Borg E, Densert O, Flock Å (1974) Synaptic vesicles in the cochlea. Acta Otolaryngol (Stockh) 78:321–332Google Scholar
- 9.Densert O (1974) Adrenergic innervation in the rabbit cochlea. Acta Otolaryngol (Stockh) 78:345–356Google Scholar
- 10.Densert O (1975) The effect of 6-hydroxydopamine on the rabbit cochlea. Acta Otolaryngol (Stockh) 79:339–351Google Scholar
- 11.Kellerhals B, Engström H, Ades HW (1967) Die Morphologie des Ganglion spirale cochleae. Acta Otolaryngol (Stockh) [Suppl] 226:1–78Google Scholar
- 12.Kimura RS, Ota CY, Takahasi T (1979) Nerve fiber synapses on spiral ganglion cells in the human cochlea. Ann Otol Rhinol Laryngol 88 [Suppl 62]:1–17Google Scholar
- 13.Romand R, Romand MR (1984) The spiral ganglion. In: Friedman I, Ballantyne J (eds) Ultrastructural atlas of the inner ear. Butterworths, London, pp 165–183Google Scholar
- 14.Ross MD, Burkel W (1973) Multipolar neurons in the spiral ganglion of the rat. Acta Otolaryngol (Stockh) 76:381–394Google Scholar
- 15.Spoendlin H (1969) Innervation patterns in the organ of Corti of the cat. Acta Otolaryngol (Stockh) 67:239–254Google Scholar
- 16.Spoendlin H (1972) Innervation densities of the cochlea. Acta Otolaryngol (Stockh) 73:235–248Google Scholar
- 17.Spoendlin H (1973) Autonomic nerve supply to the inner ear. In: De Lorenzo AJ (ed) Vascular disorders and hearing defects. University Park Press, Baltimore, pp 93–111Google Scholar
- 18.Ylikoski J, Collan Y, Palva T (1978) Ultrastructural features of spiral ganglion cells. Arch Otorhinolaryngol 104:84–88Google Scholar
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