The
六腑 are the six hollow organs: gallbladder (
胆), stomach (
胃), large intestine (
大肠), small intestine (
小肠), bladder (
膀胱), and the 'triple burner' (
三焦). Paired with the
五脏 (five solid organs), they map out the entire TCM view of the body.
五脏六腑 is also an idiom for 'one's entire being'.