Ascending spinal pathway for arterial pressor response elicited by ventral root afferent inputs in the cat.

In an attempt to localize the spinal ascending pathway for ventral root afferent inputs, changes in ventral root stimulation-evoked arterial blood pressure responses were observed in anesthetized cats after selective spinal lesions. The results of these experiments indicate that the ascending spinal pathways responsible for the pressor response lie in the dorsal-most part of the lateral funiculus. The pathway was found to be bilateral, and it is likely to occupy the same area throughout the entire length of the spinal cord.