The San Jiao or triple burner is an organ found only in traditional Chinese medical theory, and with no tangible existence. It is a concept of Qi flow and fluid metabolism.

GoldBamboo

... The San Jiao or triple burner is an organ found only in traditional Chinese medical theory, and with no tangible existence. It is a concept of Qi flow and fluid metabolism. ...
Wikipedia - more...

The San Jiao (三焦, or 三膲 in ancient writing) is a traditional Chinese ...
Wikipedia - [full article]