A novel spinal pathway and other connections to the spinocerebellum in the pigeon.
Avian dorsal column nuclei do not project to the cerebellum. Injections of fluorescent tracers into the spinocerebellum of homing pigeons (Columba livia) disclosed a group of neurons located rostral to the dorsal column nuclei which receives spinal primary afferents, as confirmed by double-labeling experiments. Since this group has some similarities to the mammalian group x (location medial to the restiform body, spinal afferents, efferents to the cerebellum), this name was adopted for the pigeon. Further brainstem nuclei projecting to anterior or posterior spinocerebellum and with some relevance to transmission of spinal signals are described.
Necker
R
R
Institut f. Tierphysiologie, Ruhr-Universität Bochum, West Germany.
D000344:Afferent Pathways / Q000033:anatomy & histology* / Q000502:physiology; D000818:Animals; D001370:Axonal Transport; D001933:Brain Stem / Q000033:anatomy & histology / Q000502:physiology; D002531:Cerebellum / Q000033:anatomy & histology* / Q000502:physiology; D010856:Columbidae / Q000033:anatomy & histology*; D005456:Fluorescent Dyes; D009474:Neurons / Q000166:cytology* / Q000502:physiology; D013116:Spinal Cord / Q000033:anatomy & histology* / Q000502:physiology
D005456:Fluorescent Dyes