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Pancreas

concept

Pancreas

The pancreas is a large, relatively flat, white-to-pink-colored organ that develops from an outgrowth of the primitive foregut. It is a combined endocrine and exocrine gland in close association with the upper duodenum. During development, exocrine and endocrine elements are both derived from differentiation of duct epithelium. Depending on the species, the gross anatomical pattern of the pancreas presents as either a “mesenteric” or a “compact” type. The pancreas is invested by a very thin connective tissue capsule and divided into lobules, which in turn are formed from dense accumulations of exocrine glands that often surround islets of Langerhans. Individual lobules are defined by the thin connective tissue capsule extending into the parenchyma in the form of septa. These septa and associated interlobular connective tissues support blood and lymph vessels, nerves, ganglia, and pancreatic ducts. Arteries that supply the pancreas divide into arterioles within this space and distribute to individual lobules.

Ref:
Suzanne M. Dintzis, Denny Liggitt, 14 - Pancreas, Editor(s): Piper M. Treuting, Suzanne M. Dintzis, Comparative Anatomy and Histology, Academic Press, 2012, Pages 203-209, ISBN 9780123813619, https://doi.org/10.1016/B978-0-12-381361-9.00014-7. (https://www.sciencedirect.com/science/article/pii/B9780123813619000147)

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Added on Feb 7, 2022 by Barbara Van De Keer
Edited on Sep 25, 2022 by Barbara Van De Keer