Ancient Chinese physicians discovered the nervous system in human body 2,500 years ago. At that time, it was called meridian system. It is a huge and complicated system to connect the internal organs and the external trunk and limbs; and all the meridians converge into the spinal cord and end at the brain. So meridians are similar to the nervous system in modern medicine. We think the nervous system in modern medicine is derived from the meridian system through many transformations and modifications.
The scalp acupuncture was invented and developed through clinical practice by combining the techniques aof traditional acupuncture and the knowledge of modern anatomy and physiology. The sitmulating areas over the scalp are defined chiefly according to the location of the functional areas of the cerebral cortex. For example, since the precentral gyrus is a motor center of the cerebral cortex, this area over the scalp is defined as the motor area.
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