Abstract
The sympathetic nerve has vaso-motor action to give tension for the vascular smooth muscle of the very small artery. This contributes to blood pressure regulation and has a major role on a life support autonomously.However, the details are unknown which regional vaso-motor action each sympathetic nerve controls. We applied LASER Speckle Flow Meter (we abbreviate it to LSFG as follows) to thoracic sympathectomy of the local hidrosis patient and observed a change of the face / cervical part / in front of skin of chest blood flow, and we added some discussion.
