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.
The pancreas essentially produces two hormones for blood glucose control. These are glucagon in response to low blood glucose levels and insulin in response to high blood glucose levels. The pancreas produces glucagon in response to low blood glucose levels. It is a linear polypeptide produced by the acini cells of the islets of langerhans.