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».
Conditions commonly linked to back pain include: 1  Muscle or ligament strain. Repeated heavy lifting or a sudden awkward movement may strain back muscles and spinal ligaments. 2  Bulging or ruptured disks. Disks act as cushions between the bones (vertebrae) in your spine. 3  Arthritis. Osteoarthritis can affect the lower back.  Skeletal irregularities.