The A cells produce glucagon , which mobilizes the hepatic glycogen , and the enterochromaffin cells produce serotonin , which stimulates the contraction of the smooth muscles . The A cells produce Glucagon , which mobilises hepatic glycogen , and the enterochromaffin cells produce serotonin , which stimulates the contraction of smooth muscles .
Sel A menghasilkan glukagon, yang menggerakkan glikogen hepatik, dan sel enterochromaffin menghasilkan serotonin, yang merangsang pengecutan otot licin. Sel A menghasilkan glukagon, yang menggerakkan glikogen hepatik, dan sel enterochromaffin menghasilkan serotonin, yang merangsang pengecutan otot licin.