By Susan Chow, PhD, ELS. The pancreas is an organ that sits in the abdominal cavity behind the stomach and plays a role in both the digestive and endocrine system. In the endocrine system, it is responsible for producing several hormones, such as insulin, glucagon, somatostatin and pancreatic polypeptide. Additionally, its exocrine function involves the secretion of digestive enzymes that aid the digestion and absorption of nutrients in the small intestine. Head of pancreas.
The list of signs and symptoms mentioned in various sources for Upper back muscle strain includes the 8 symptoms listed below: 1  Muscle pain. 2  Muscle tenderness. 3  Muscle swelling.  Muscle 1  stiffness. Muscle inflammation. 2  Bruising. Redness.  Reduce ability to move the affected 1  body part. more information...Â».
Symptoms of pulled back muscles include back pain and muscle weakness and sometimes back muscle spasms. The back pain may be sudden, but usually comes on gradually. The muscles stiffen or spasm to reduce motion to prevent further injury. Muscle injuries cause inflammation - a part of the healing process.