While the sympathetic nerves all spring from the thoracolumbar area of your spinal cord, right around your midsection, the nerves of the parasympathetic division are craniosacral.

交感神经都是从你的脊髓胸腰区放射，就在你的腹部附近，副交感神经区域则是位于颅骶。

Your sympathetic fibers are thoracolumbar — meaning that they originate from between your thoracic vertebrae where your ribs attach, and the lumbar vertebrae just inferior to your ribs.

你的交感神经纤维是胸腰椎——这意味着它们起源于胸椎之间，肋骨连接的地方，和肋骨下面的腰椎。