The pancreas constitutes an organ that consists of both exocrine and endocrine tissues. The latter, that is, the 1 to 2 million islets of Langerhans, are scattered throughout the exocrine parenchyma and make up only 1 to 2 percent of the volume in the adult pancreas. Studies during the recent two decades have shed more light on the complex organization of the pancreatic microvasculature and have underlined the autonomy of the microvascular networks in the endocrine and exocrine parts of the gland, both anatomically and functionally. Thus, from a microvascular point of view the pancreas consists of two different organs, with differently regulated blood perfusion.

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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