Degeneration and Regeneration in Neurons of the Cerebellum

The normal anatomy of the cerebellum has been thoroughly studied by numerous in vestigators over many years. Anatomical aspects in terms of evolution (Dow, 1942; Larsell, 1967; Llinas, 1969; Gregory, 1975), correlative anatomy (Wallenberg, 1931), and morphology (Larsell, 1952; L0ning and Jansen, 1955; Ludwig-Hauri, 1955; Braitenberg and Atwood, 1958; Jansen und Brodal, 1958; Zeman and Innes, 1963) have been presented. Histological features have attracted many investigators (Bergmann, 1857; Denis senko, 1877; Ramon y Cajal and Illera, 1907; Addison, 1911; Jakob, 1928; Snider and Jacobs, 1949; Braitenberg and Atwood, 1958; Baud, 1959; Altman, 1962, 1963, 1966, 1971, 1972a, b, c, 1973a, b, 1975; Birch-Anderson et aI. , 1962; Andres, 1965; Eccles et aI. , 1967; Fox and Snider, 1967; Mugnaini and Forstrl1. lDen, 1967; Del Cerro and Snider, 1968, 1972a, b; O'Leary et aI. , 1968, 1971; Chan-Palay and Palay, 1970, 1971, 1972; Rakic and Sidman, 1970; Das and Altman, 1971; Gobel, 1971; Rakic, 1971; 1972a, b; Chan-Palay, 1972a, b, 1973c, d; Palay and Chan-Palay, 1972, 1974; Sidman and Rakic, 1973; Spacek et aI. , 1973; Das et al. , 1974; Braak, 1975; Crepel and Mariani, 1975; Derrnietzel, 1975a, b; Gregory, 1975; Llinas, 1975; Meller and Tetzlaff, 1975; Cragg, 1976; Rees et aI. , 1976; Zelevic and Rakic, 1976). Investigators of the cytologi cal characteristics of the cerebellar cortex are numerous (Sternberg and Krombholtz, 1838; Smirnow, 1897; Ramon y Fananas, 1916; Larramendi et al.