Ji nei jin is the inner membrane of the gizzard of the common chicken, (Phasianidae family).It is golden-yellow to greenish-yellow in color and its shape is irregular, curled slices.

• 摘要鸡内金为雉稚动物-鸡的乾燥砂囊内膜，为不规则波浪片状，表面呈金黄色，或黄绿色。