Cells of origin of hypothalamo-spinal projections in the rat.
The retrograde transport of horseradish peroxidase (HRP) was used to determine the distribution of hypothalamic neurons which send axonal projections to the spinal cord. Labeled cells were observed in the paraventricular nucleus (PV) and in the lateral hypothalamic area following HRP injections into the lower thoracic and upper lumbar spinal cords of rats. In PV, the HRP-labeled cells were located in the parvocellular portion of the nucleus. Hypothalamo-spinal projections are predominantly uncrossed.
Hancock
M B
MB
Department of Anatomy, University of Texas Medical Branch, Galveston, Texas 77550 U.S.A.