Cretinism : It is the result of hyposecretion of thyroxine from thyroid gland during childhood.
Thymus : Thymus is an endocrine gland which is active in young ones but gradually becomes inconspicuous after sexual maturity. Like other lymphoid tissues, thymus undergoes atrophyl in response to adrenoglucocorticoids.
Parathyroid : Parathormone secreted from parathyroid glands, promotes absorption of calcium from food in the intestine and its reabsorption from nephrons in the kidneys.
Delta cells of pancreas : Delta cells may secrete small amount of gastrin and somatostatin. Which affects gastric juice secretion and inhibition of glucagon and insulin respectively.