The Qi Fu or Six Extraordinary Organs have the form of Yang organs, of hollow organs. But they have Yin function, of storage. They store Essence in the form of Jing, Blood or Marrow. They do not have their own channels but are nourished by main or Extraordinary channels, and all are related to Kidney. They are the following:

• Brain
• Marrow
• Bones
• Blood vessels
• Uterus
• Gall Bladder, the only one that has its own channel.

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