《黄帝内经·灵枢·海论》
岐伯说：胃的功能是接受容纳饮食物，是气血生化之源，故称为水谷之海，其注输部位，在上部是气冲穴，下部是足三里穴。
岐伯曰：胃者水谷之海，其输上在气冲，下至三里。
Qi Bo said: The function of the stomach is to accept and accommodate food and drink, and it is the source of qi and blood biochemistry, so it is called the sea of water and grains. Its injection point is the Qi Chong acupoint above and the Zu San Li acupoint below.