Which of the following are correct combinations regarding the cells of islets of Langerhans and
Channel: Doubtnut
Date: 2020-05-31

Which of the following are correct combinations regarding the cells of islets of Langerhans and their secretions?  I. `alpha`-cells Glucagon  II. F-cells Somatostatin  III. `beta`-cells Insulin  IV. S-cells - Polypeptides  Choose the correct option.