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CHAPTER 12 - EXOCRINE GLANDS
Histology Guide
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MICROGRAPH

NAME
EM 258 PancreaS
TISSUE
Pancreas
(rat)
IMAGE SIZE
4,118 x 4,685 pixels
55 MB
FILE SIZES
12,832 KB (grayscale)
12,740 KB (color)
MAGNIFICATION
Unknown
PIXEL SIZE
0.04177 nm
SOURCE
Stanley L. Erlandsen
Department of Genetics, Cell Biology and Development
School of Medicine
University of Minnesota
Minneapolis, MN

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EM 258 Pancreas

Exocrine Pancreas

Scanning electron micrograph (SEM) of the indistinct lobules of the pancreas.

The exocrine pancreas is a compound tubular gland that end in acini.

  • Acinus - each round- to oval-shaped acinus consists of a single layer of pyramidal cells around a central lumen.
    • Boundaries between individual acinar cells are visible on the exterior surface of each acinus.
  • Intralobular Ducts (yellow) - acinar cells produce pancreatic juice (digestive enzymes) that empty into intralobular ducts (ducts are collapsed in this specimen)
    • Ducts collapsed giving them a flattened appearance
  • Capillaries (red) - each acinus is surrounded by capillaries that arise from arterioles
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