the endocrine system is the answer.
The pancreas has dual roles - it is an organ of the digestive system and of the endocrine system. The exocrine pancreas produces enzymes that help to digest food, particularly protein. The endocrine pancreas makes the hormone insulin, which helps to control blood sugar levels.
The pancreas is considered part of the digestive and endocrine systems. It is both an exocrine gland, secreting pancreatic juices that break down carbohydrates in the small intestine and a endocrine gland, secreting hormones, such as insulin and glucagon.
Pancreas?
Tendons belong to the musculoskeletal system in the human body.
it is an organ, it doesn't belong to any other organs in the body but it does belong to a system in the body the digestive system.
The bicep is in the muscular body system.
The pancreas
The immune system
The cardiovascular system.
Respiratory System
the pancrease is a vital organ that helps to break down enzymes in your body tht can potentialy harm you, after a long exposure time. it also helps to stableize the amount of proteins that your body can make.
The male reproductive system.
Circulatory system