pneumogastric

MB leads little changes of hemodynamics due to inhibit cardiac sympathicotonia and pneumogastric nerve simultaneity, but TEB brings the evident changes due to only inhibit pneumogastric nerve.

隔与硬膜相比，硬膜抑制交感经，引起明显血流动力学变，隔同时抑制心交感和心迷走经，不引起明显血流动力学变。