Image:Zhulab-resfig1.jpg

Schematic representation of the parietal cell in resting and stimulated states. Drastic morphological change occurs with stimulation. In the resting state the apical canaliculi extend into the cell presenting short microvilli. Tubulovesicles containing cargo H,K pumps (red) abound in the cytoplasmic space. There are also many mitochondria.