ABSTRACT
As early as 400-200 BC, the historical period in which the neijing is believed to have been written, medical practitioners had concluded that the ear was not only an isolated organ but that it was closely connected with all the significant parts of the body, including the 12 channels and the zang-fu organs. As mentioned before, all the yang channels (i.e., the triple burner, the large intestine, the small intestine, the stomach, the urinary bladder, and the gallbladder channels) run up to the ear. Although the large intestine channel ends at the side of the nose, it is said to be indirectly linked with the ear through its connection with the stomach channel. Additionally, the six yin channels do not flow directly to the ear, but their routes join with their corresponding yang channels through a network of interconnections. Thus, the six yin channels are also thought to be related to the ear.
