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To the question of the relation n. depressoris to the vasoconstrictor and vasodilator centers

As we indicated above, for transection of the posterior roots of the lumbosacral plexus, we completely removed the arch of one or two lumbar vertebrae, cut along the dura mater, and cut the posterior roots either one or several at once. At the end of the experiment, the cut roots were checked by careful preparation and the condition of the neighboring parts was examined.