The segmental distribution and proected region of primary afferent fibers of acupionts Jiexi

Zu-sanli

Futu

Shuidao

Chengman

Rugen

Wuyi

Jiache of the stomach channel and Heyang

Feng-men

Tianzhu of the bladcler channel in Substantia Gelatinoso of spinal cord and lower brain stem were examined by CB-HRP tecllnique in rabbits. The results suggest that there could be a chain of neural networks corresponding to the stomach channel of Foot Yangming in Substantia Gelatinosa of spinal cord and brain stem. The chain of neural networks run through the length of spinal cord

extending to nucleus tractus spinalis nervi trigemini. The primary afferent fibers of the stomach and bladder chan-nels might have different regional distribution respectively

and have the relative specificity of distribu-tion overlapped mutually in the substantia Gelatinosa of spinal cord.