In glands #1, #2, #3 of the pyloric part of the stomach detected positively stained endocrinocytes #1, #2, #3. The most common are gastrin-producing cells.

Located in the integumentary and glandular epithelium, single endocrinocytes secrete hormones of various biological effects and participate in the regulation of the functional activity of the digestive tube organs.

For more information, see "Diffuse endocrine system"