Pancreas is both an exocrine and an endocrine gland because it secrets both horomes and digestive enzymes. The pancreas the the main regulator of blood glucose levels. It produces insulin which decreases blood glucose levels and glucagon which increases blood glucose levels. This is the exocrine function.An exocrine gland delivers its product through a duct and an endocrine gland delivers its product to the bloodstream. The pancreas has both.
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