Pancreas
graph TD
Pancreas --> Islets
Islets --> Alpha[Alpha cells]
Islets --> Beta[Beta cells]
Islets --> Delta[Delta cells]
Islets --> PP["PP (F) cells"]
Islets --> Epsilon[Epsilon cells]
Alpha --> Glucagon
Beta --> Insulin
Delta --> Somatostatin
PP --> PancreaticPolypeptide[Pancreatic Polypeptide]
Epsilon --> Ghrelin
Glucagon -- increases --> BloodGlucose
Insulin -- decreases --> BloodGlucose
Insulin -. inhibits .-> Glucagon
Glucagon -. stimulates .-> Insulin
Somatostatin -. inhibits .-> Insulin
Somatostatin -. inhibits .-> Glucagon
PancreaticPolypeptide -- regulates --> PancreaticSecretions
PancreaticPolypeptide -- regulates --> Appetite
Ghrelin -- stimulates --> Appetite