Under the electric microscope, there is abundant rough endoplasmic reticulum(RER), golgi complex and mitochondria in the cytoplasm of the chief cell, but there is also some smooth endoplasmic reticulum(SER) and microtubule in the cytoplasm.

• 电镜下，胃底腺主细胞里有分泌颗粒，有丰富的线粒体、高尔基复合体和粗面内质网，也有细胞内分泌小管和滑面内质网，故其应相当于哺乳动物胃腺的主细胞，但也兼有壁细胞的功能，可称之为壁-主细胞。