INTRODUCTION
Triple energizer theory originated from the oldest Chinese medical book
“Yellow Emperor’s Canon of Medicine (YECM)” [1]. It is an
extremely important concept in traditional Chinese medicine (TCM), and
is known to participate in the comprehensive regulation of visceral
function, but its physical and anatomical basis is still elusive for
more than 2000 years. YECM usually classifies triple energizer into
upper, middle and lower parts according to their functions, without
reference to their intrinsic morphology and structure. The upper part
completes the function of the chest viscera, including the heart and
lungs; the middle part completes the visceral function of the abdomen
above the umbilicus, including the stomach, spleen, liver, gallbladder,
pancreas and small intestine; and the lower part completes the visceral
function of the abdomen and pelvic cavity under the umbilicus, including
kidney and bladder. Limbs and head were excluded from the range of
triple energizer. After analyzing the triple energizer theory put
forward by YECM,Yellow Emperor’s Eighty-one Hard Canon (YEEHC) also
proposed that triple energizer has a name without a structure. Although
this view has been controversial, it has become the mainstream [2].