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Overview

Clusters of endocrine cells and endocrine organs are supplied by fenestrated capillaries, which greatly facilitate the entry of hormone into the blood stream.  In endocrine organs these fenestrations have a nonmembranous diaphragm across the opening.  Endocrine pancreas  28,000x

Endocrine cell <p>Clusters of endocrine cells and endocrine organs are supplied by fenestrated capillaries, which greatly facilitate the entry of hormone into the blood stream.  In endocrine organs these fenestrations have a nonmembranous diaphragm across the opening.  Endocrine pancreas  28,000x</p>

Endocrine cell

Clusters of endocrine cells and endocrine organs are supplied by fenestrated capillaries, which greatly facilitate the entry of hormone into the blood stream.  In endocrine organs these fenestrations have a nonmembranous diaphragm across the opening.  Endocrine pancreas  28,000x

 - Secretory granules <p>Clusters of endocrine cells and endocrine organs are supplied by fenestrated capillaries, which greatly facilitate the entry of hormone into the blood stream.  In endocrine organs these fenestrations have a nonmembranous diaphragm across the opening.  Endocrine pancreas  28,000x</p>

- Secretory granules

Clusters of endocrine cells and endocrine organs are supplied by fenestrated capillaries, which greatly facilitate the entry of hormone into the blood stream.  In endocrine organs these fenestrations have a nonmembranous diaphragm across the opening.  Endocrine pancreas  28,000x

 - Mitochondria <p>Clusters of endocrine cells and endocrine organs are supplied by fenestrated capillaries, which greatly facilitate the entry of hormone into the blood stream.  In endocrine organs these fenestrations have a nonmembranous diaphragm across the opening.  Endocrine pancreas  28,000x</p>

- Mitochondria

Clusters of endocrine cells and endocrine organs are supplied by fenestrated capillaries, which greatly facilitate the entry of hormone into the blood stream.  In endocrine organs these fenestrations have a nonmembranous diaphragm across the opening.  Endocrine pancreas  28,000x

Capillary lumen <p>Clusters of endocrine cells and endocrine organs are supplied by fenestrated capillaries, which greatly facilitate the entry of hormone into the blood stream.  In endocrine organs these fenestrations have a nonmembranous diaphragm across the opening.  Endocrine pancreas  28,000x</p>

Capillary lumen

Clusters of endocrine cells and endocrine organs are supplied by fenestrated capillaries, which greatly facilitate the entry of hormone into the blood stream.  In endocrine organs these fenestrations have a nonmembranous diaphragm across the opening.  Endocrine pancreas  28,000x

Fenestrated endothelium <p>Clusters of endocrine cells and endocrine organs are supplied by fenestrated capillaries, which greatly facilitate the entry of hormone into the blood stream.  In endocrine organs these fenestrations have a nonmembranous diaphragm across the opening.  Endocrine pancreas  28,000x</p>

Fenestrated endothelium

Clusters of endocrine cells and endocrine organs are supplied by fenestrated capillaries, which greatly facilitate the entry of hormone into the blood stream.  In endocrine organs these fenestrations have a nonmembranous diaphragm across the opening.  Endocrine pancreas  28,000x

Basal laminae > <p>A basal lamina is present beneath the endothelial cells (blue arrows) as well as the endocrine cell (red arrows), as both are types of epithelia.</p>

Basal laminae >

A basal lamina is present beneath the endothelial cells (blue arrows) as well as the endocrine cell (red arrows), as both are types of epithelia.

Loose connective tissue > <p>The space between the two basal laminae is filled with loose connective tissue.</p>

Loose connective tissue >

The space between the two basal laminae is filled with loose connective tissue.