Answer 1 of 6: Ihave read many postings about the weather in Roatan and there is sometimes conflicting info but overall it seems to be that -March can sometimes still be rainy(it looks like it is at the end of the rainy season) -April has very little rain Am...
* D cells produce somatostatin; and. * F or D1 cells produce pancreatic polypeptide. These hormones are all polypeptides. Insulin is secreted only by the B cells whereas the other hormones are also secreted by the gastrointestinal mucosa and somatostatin is also found in the brain.
Primary hormones secreted by the pancreas include: 1  Gastrin: This hormone aids digestion by stimulating certain cells in the stomach to produce acid. 2  Glucagon: Glucagon helps insulin maintain normal blood glucose by working in the opposite way of insulin. It stimulates your cells to release glucose, and this raises your blood glucose levels. Insulin: This hormone regulates blood glucose by allowing many of your bodyâs cells to absorb and use glucose. In turn, this drops blood glucose levels. Somatostatin: When levels of other pancreatic hormones, such as insulin and glucagon, get too high, somatostatin is secreted to maintain a balance of glucose and/or salt in the blood. Vasoactive intestinal peptide (VIP): This hormone helps control water secretion and absorption from the intestines by stimulating the intestinal cells to release water and salts into the intestines.