Question

islets of langerhans are present in the

Answer 1

The alpha cells of the islets of Langerhans produce an opposing hormone, glucagon, which releases glucose from the liver and fatty acids from fat tissue. In turn, glucose and free fatty acids favour insulin release and inhibit glucagon release.

Answer 2

islets of Langerhans are scattered throughout the pancreas. they are tiny clusters of cell. pancreas is located behind the lower part of stomach and has 4 types of cells :
alpha
beta
gamma and
delta