Canaliculi help expand the surface area of this organ's parietal cells, which release intrinsic factor to facilitate the absorption of vitamin B12.
This organ's muscle is surrounded and controlled by orthosympathetic and parasympathetic plexuses. Canaliculi help expand the surface area of this organ's parietal cells, which release intrinsic factor to facilitate the absorption of vitamin B12. Folds called rugae allow this organ to expand or contract, and its chief cells secrete (*) pepsinogen, an inactive molecule that is later converted into the enzyme pepsin. Through the pyloric sphincter, chyme passes from this organ to the duodenum. For ten points, name this organ that lies between the esophagus and the small intestine and produces hydrochloric acid.
This organ's muscle is surrounded and controlled by orthosympathetic and parasympathetic plexuses.
stomach