Five internal organs: heart, liver, spleen, kidney and lung. Six fu organs: stomach, gallbladder, triple energizer, bladder, large intestine and small intestine. Refers to the internal organs of the human body. It is also a metaphor for the internal situation of things.

Viscera refers to various organs in the human body. "Viscera" refers to solid organic organs, including heart, liver, spleen, lung and kidney, and "fu-organs" refers to hollow containers with five fu-organs, such as small intestine, gallbladder, stomach, large intestine and bladder, corresponding to the five internal organs respectively. In addition, the thoracic cavity and abdominal cavity of human body are divided into upper coke, middle coke and lower coke.

Pinyin: [w ǔ ǔ ǔ ǔ ǔ ǔ].

Source: Zhang Song Fang Jun's "Seven Signs of the Cloud": "Every time I sit, I often close my eyes and look in; See the five internal organs; Be complacent for a long time; very clear