| Abstract: | The location within the brain of labeled neurons giving rise to projections to the ventral magnocellular section of the red nucleus were investigated by means of microiontophoretically injected horseradish peroxidase. Projections were identified from many cortical, thalamic, and hypothalamic structures and from the head of the caudate nucleus, septum, globus pallidus, anterior commissure nucleus, central amygdalar nucleus, field of Forel, Zona incerta, and a number of brainstem structures. Findings in accordance with those found in the literature were obtained on projections to the red nucleus from the coronary and cruciate cortical sulci, the midbrain and dentate (lateral) cerebellar nuclei, subststantia nigra, nucleus gracilis, and the cuneate nucleus. Trajectories of retrogradely labeled fiber systems of the red nucleus are described.L. A. Orbeli Institute of Physiology, Academy of Sciences of the Armenian SSR, Erevan. Translated from Neirofiziologiya, Vol. 20, No. 5, pp. 680–687, September–October, 1988. |
