Abstract:
:Light microscopic autoradiography and electron microscopy were used to trace the nigrothalamic projections and to study the sites of termination of this pathway in the cat. Injections of tritiated amino acids or electrolytic lesions were placed in the substantia nigra pars reticularis (SNr). An accumulation of radioactivity was found in the ventral medial nucleus and in the ventromedial part of the ventral anterior nucleus. At the ultrastructural level degenerating medium size synaptic boutons and medium size myelinated fibers were observed in these nuclei. The boutons contained clear pleomorphic veiscles and formed symmetrical type synaptic contacts with regular type dendrites and vesicel-containing dendrites. The present findings indicate that the ventral medial nucleus is the principal site of termination of nigrothalamic projections in the cat.
journal_name
Exp Brain Resjournal_title
Experimental brain researchauthors
Kultas-Ilinsky K,Ilinsky IA,Massopust LC,Young PA,Smith KRdoi
10.1007/BF00235569subject
Has Abstractpub_date
1978-11-15 00:00:00pages
481-92issue
3-4eissn
0014-4819issn
1432-1106journal_volume
33pub_type
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