Question

What is the function of the islets of langerhans?
A. Production of insulin
B. Production of glucagon
C. Glycogenesis
D. All of the above

Answer 1

Hint: The islets of langerhans are a cluster of cells within the pancreas that are responsible for the production and release of hormones that regulate glucose levels. The overall maintenance of the glucose level in the body either high or low is maintained by langerhans cells.

Complete answer: Islets of langerhans, additionally called islands of langerhans, sporadically molded patches of endocrine tissue situated inside the pancreas of most vertebrates. The ordinary human pancreas contains around one million islets. The islets consist of four unmistakable cell types, of which three (alpha, beta, and delta cells) produce significant hormones; the fourth part (C cells) has no known function. The most regular islet cell, the beta cell, produces insulin, the significant hormone in the guideline of sugar, fat, and protein digestion. Insulin is significant in a few metabolic cycles: it advances the take-up and digestion of glucose by the body's cells; it forestalls the arrival of glucose by the liver; it causes muscle cells to take up amino acids, the essential segments of protein; and it restrains the breakdown and arrival of fats. The arrival of insulin from the beta cells can be set off by development hormone (somatotropin) or by glucagon, however the most significant trigger of insulin discharge is glucose; when the blood glucose level increments, as it does after dinner, insulin is delivered to counter it. The powerlessness of the islet cells to make insulin or the inability to create sums adequate to control blood glucose levels are the reasons for diabetes mellitus. The alpha cells of the islets of langerhans produce a restricting hormone, glucagon, which discharges glucose from the liver and unsaturated fats from fat tissue. Thus, glucose and free unsaturated fats favor insulin delivery and repress glucagon discharge. The delta cells produce somatostatin, a solid inhibitor of somatotropin, insulin, and glucagon; its part in the metabolic guidelines isn't yet clear. Somatostatin is likewise delivered by the nerve center and capacities there to repress the discharge of development hormone by the pituitary organ.
Thus, the correct option is "D"

Note: The ordinary human pancreas contains around 1 million islets. They are responsible for the production and release of hormones that regulate glucose levels. The overall maintenance of the glucose level in the body either high or low is maintained by langerhans cells.