title: Direct projections of the hypothalamic nuclei to the thalamic mediodorsal nucleus in the cat.
abstract: Direct projections of the hypothalamic nuclei to the thalamic mediodorsal nucleus (MD) were studied using retrograde and anterograde transport of horseradish peroxidase (HRP) and wheat germ agglutinin (WGA)-HRP. HRP and WGA-HRP were injected into the MD, thalamic paraventricular, lateral habenular and hypothalamic nuclei. The results indicate that the MD, particularly its medial part, receives a moderate amount of hypothalamic afferents, and that most of these afferents originate in the medial part of the lateral hypothalamic nucleus at anterior levels, while a limited number are derived from the dorsal, dorsomedial, ventromedial and anterior hypothalamic and lateral preoptic nuclei.
mesh_terms: D000818:Animals; D002415:Cats; D007031:Hypothalamus / Q000033:anatomy & histology*; D009434:Neural Pathways / Q000033:anatomy & histology; D013787:Thalamic Nuclei / Q000033:anatomy & histology*