本研究目的，依現代解剖生理學，擬探討內經、難經與中藏經的三焦功能，包括「孤腑」、「六腑之功能」、「元氣之別使」、「主諸氣」、「總領五臟、六腑、榮衛、經絡、內外、左右上下之氣也」等。由鈴器官與生理的體用關係，每個器官皆有其獨特的生理功能，而每種生理功能也都有其相對應的器官，中醫三焦器官有名無形或有名有形，歷代醫家均有不同的說法。本研究結果，認為內經「有經無腑」的三焦生理之對應器官應屬自律神經系統，難經與中藏經具有較廣義生理範圍之三焦，其對應器官應屬脊髓。自律神經系統應歸屬中醫臟腑十二經脈，脊髓應具有「腑」的器官之生理位階。

The purpose of study is to survey functions of the triple burner in Nei-Jing, Nan-Jing and Zhong-Zang Jing according modern anatomical physiology. The functions of triple burner contain independent bowel, six bowels function, the channel of original qi, governing the qi, leader the qi of five viscera, six bowels, the aspect of construction and defense, the channels, internal and external aspect, left-right and up-down. Owing the relationship of body and function between organ and physiology, each organ has its unique physiological function and each physiological function also has its corresponding organ. The organ of the triple burner with named and shape or name present without shape, the historically medical scholars which had a different opinion. The results suggest that the triple burner has its channel without bowel in NeiJing, which the corresponding organ of the triple burner in physiology should be automatic nervous system(ANS). The corresponding organ of the triple burner with a broad range of physiological activities in Nan-Jing and Zhong-Zang Jing should be spinal cord. The automatic nervous system should belong to the viscera and bowel as well as twelve channels in Chinese medicine. The spinal cord should be confirmed within the bowel organ, which has its physiological level.