Pancreas
-- a large exocrine gland for secretion of digestive enzymes that
are carried by a duct system to the duodenum. Small areas of
endocrine tissue, the islets of Langerhans, will be studied later.
Examine sections of pancreas with low power and observe the overall organization into
lobules separated by CT septa with adipocytes, the pale-staining
pancreatic islets (of Langerhans) surrounded by densely packed acini, and the
excretory ducts.
With
the 40X objective, examine acini in an area where the polarized
nature of the cells is apparent.
Note that the lumens of
pancreatic acini are almost too small to see with the light
microscope.
Indicate one secreted factor of
intercalated ducts.
Pancreas
-- a large exocrine gland for secretion of digestive enzymes that
are carried by a duct system to the duodenum. Small areas of
endocrine tissue, the islets of Langerhans, will be studied later.