title: Ratio of inferior olivary cells to Purkinje cells in a marsupial (Trichosurus vulpecula).
abstract: An indirect estimate of the extent of branching of the olivary axons in the cerebellum in a marsupial (Trichosurus vulpecula) was carried out. The cells in the inferior olivary nuclear complex (IOC) of both sides were estimated (mean = 57,200), as were the cerebellar Purkinje cells (mean = 881,300). Assuming that all climbing fibers arise from IOC cells and that each Purkinje cell receives a climbing fiber input, each IOC cell sends climbing fiber terminals to 15 Purkinje cells.
mesh_terms: D000818:Animals; D001369:Axons; D002452:Cell Count; D002531:Cerebellum / Q000033:anatomy & histology / Q000166:cytology; D009847:Olivary Nucleus / Q000033:anatomy & histology / Q000166:cytology*; D009893:Opossums / Q000033:anatomy & histology*; D011689:Purkinje Cells / Q000166:cytology*