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The liver and pancreas are both exocrine and endocrine glands; they are exocrine glands because they secrete productsâ bile and pancreatic juice âinto the gastrointestinal tract through a series of ducts, and endocrine because they secrete other substances directly into the bloodstream.
The two major brain endocrine glands are the Pituitary Gland and Pineal Gland. Throughout the body we have the Thyroid, Parathyroid, and Adrenal Glands that deal with the endocrine system. All hormones that we know, are derived from or come from 3 basic chemical strucutres, name them.