Efferents from the medial anterior hypothalamic area in the guinea pig |
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Authors: | Ching Liang Shen Conwell H. Anderson |
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Abstract: | Medial anterior hypothalamic connections were studied with H3-proline and autoradiography. Most of the axons projected to other hypothalamic nuclei. The major pathways were found ventral medial to the fornix and in the periventricular tract. Substantial projections were apparent in the ventromedial and dorsomedial nuclei with less label in the arcuate nucleus. The dorsal premammillary nuclei were labeled bilaterally, particularly with more caudal injections of anterior hypothalamus. Efferents were evident in the posterior hypothalamus and continued into the central gray of the midbrain. Labeled fibers reached the ventral tegmental area and in the reticular formation were traced only through pons. Rostral projections were to the medial and lateral preoptic areas and ventral lateral septum. The bed nucleus of stria terminalis was labeled and a very few fibers reached the medial amygdaloid nucleus. The periventricular nucleus of thalamus was labeled. |
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Keywords: | Anterior hypothalamic area Guinea pig Hypothalamus Efferents Autoradiography |
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