Termination in overlapping sagittal zones in cerebellar anterior lobe of mossy and climbing fiber paths activated from dorsal funiculus.
The termination patterns in the cerebellar anterior lobe of one mossy fiber path, the exteroceptive component of the cuneocerebellar tract (E-CCT), and one climbing fiber system, the dorsal spino-olivocerebellar paths (DF-SOCPs), which both relay in the main cuneate nucleus, were compared in the cat. The E-CCT terminates in the ipsilateral half of the anterior lobe in five sagittal zones which overlap five of the eight zones activated from the DF-SOCPs. In at least one zone the E-CCT projection has a somatotopical organization which is similar to and overlaps that of the DF-SOCP.
D000344:Afferent Pathways / Q000502:physiology; D000818:Animals; D001931:Brain Mapping; D002415:Cats; D002525:Cerebellar Cortex / Q000502:physiology; D002531:Cerebellum / Q000502:physiology*; D005071:Evoked Potentials; D005552:Forelimb / Q000294:innervation; D008475:Median Nerve / Q000502:physiology; D008526:Medulla Oblongata / Q000502:physiology; D009412:Nerve Fibers / Q000502:physiology; D009474:Neurons / Q000502:physiology; D009847:Olivary Nucleus / Q000502:physiology; D012867:Skin / Q000294:innervation; D013116:Spinal Cord / Q000502:physiology*