Although her nose began bleeding soon afterwards, Dr. Brenner seemed pleased nonetheless. The next experiment involved using her powers to manipulate a living creature. Dr. Brenner presented Eleven with a cat, but she could not bring herself to do anything to it. As punishment for her refusal, the pleading girl was dragged into the cell by two guards.
Carcinoid tumors are by far the most common type of neuroendocrine tumor found in the gastrointestinal system. Other, more rare types of gastrointestinal neuroendocrine tumors include small cell carcinoma, large cell carcinoma, and pancreatic neuroendocrine tumors, which arise in the islet cells of the pancreas.
The endocrine system is made up of pituitary, pineal, thyroid, parathyroid and adrenal glands, pancreatic islet cells (also known as islets of Langerhans) and the ovaries or testicles. 1  The pituitary, pineal and parathyroid glands are neuroendocrine glands. Neuroendocrine cells in the digestive system regulate intestinal movements and the release of digestive enzymes. 2  Neuroendocrine cells in the respiratory system are believed to play a role in the developmental stages of the respiratory organs. 3  They also regulate respiratory function.