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| | Yin and Yang |
 | | The zang organs lung, heart, liver and spleen) are yin and fu organ (large intestine, small intestine, gall bladder, stomach, urinary bladder and sanjiao) are yang. |
 | | The bladder secretes urine, removing the final impurities distilled from the kidneys from fluids received from the small and large intestines and the lungs. |
 | | It is the relationship between the water organs--particularly the lungs, spleen, kidneys, small intestine, and bladder. |
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