Carcinoid neuroendocrine tumors – Prognosis and life expectancy The neuroendocrine system is a complex regulatory mechanism comprised of cells spread throughout several organ systems, including our lungs and digestive system. As they have characteristics of both nerves and endocrine cells, they are called neuroendocrine cells. The nerve cells transmit signals using electrical impulses, whereas endocrine cells make thyroid and insulin-secreting glands.

Liver damage – What are the first signs? On the right side of the abdomen, below your rib cage, is an organ called the liver. It is the size of a football and is one of the most important organs in the human body. The liver aids in the digestion of the food we eat and also helps in flushing out the toxins from our body.