[Study of cerebellar connections in the turtle using the technic of axonal transport of horseradish peroxidase].
Cerebellar connections in turtles were studied after unilateral horseradish peroxidase administration both in the corpus and nuclei and in the mesencephalic tegmentum. Cells of origin of projections into cerebellum revealed in the caudal brain stem (vestibular nuclei, perihypoglossal complex, inferior reticular formation, oliva inferior) and in the spinal cord appeared to be more numerous than those in rostral structures (pretectum, tegmentum). Efferent cerebellar projections were observed in the medulla oblongata (vestibular nuclei, nuclei of dorsal columns of the spinal cord), in the mesencephalic tegmentum and scarce projections - in the hypothalamus and ventral thalamus. It is concluded that reptiles and mammals have the greatest similarity in afferent and efferent connections of the cerebellum with the spinal cord, caudal brainstem and mesencephalic structures, all of them being functionally united by participation in the regulation of muscle tonus and in the coordination of the locomotor activity.
D000818:Animals; D002531:Cerebellum / Q000033:anatomy & histology*; D004027:Diencephalon / Q000033:anatomy & histology; D008526:Medulla Oblongata / Q000033:anatomy & histology; D008636:Mesencephalon / Q000033:anatomy & histology; D009434:Neural Pathways / Q000033:anatomy & histology; D013116:Spinal Cord / Q000033:anatomy & histology; D014426:Turtles / Q000033:anatomy & histology*
Issledovanie sviazeĭ mozzhechka cherepakh s pomoshch'iu metoda aksonnogo transporta peroksidazy khrena.