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Histology - Pancreas
Complete
29
Medical
Graduate
09/25/2008

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Term
Which 2 arteries supply the pancreas?
Definition
The celiac artery and the superior mesenteric artery.
Term
What does acinus mean?
Definition
Grape
Term
What type of substance do zymogen cells secrete?
Definition
Proteins
Term
What do Centroacinar cells form?
Definition
Part of the duct system.
Term
What substance stimulates zymogen cells to secrete their proenzymes?
Definition
cholecystokinin (CCK)
Term
What cells of the duodenum secrete CCK?
Definition
The enteroendocrine cells
Term
What causes the release of CCK?
Definition
The presence of H+, amino acids, etc. in the small intestine.
Term
What is the secretory product of centroacinar cells and intercalated duct cells?
Definition
A watery, alkaline rich fluid containing HCO3 and salts.
Term
What substance stimulates centroacinar cells and intercalated duct cells to secrete their products?
Definition
Secretin
Term
What cells of the duodenum secrete Secretin?
Definition
The enteroendocrine cells
Term
Which enzyme activates trypsin, which in turn activates other enzymes?
Definition
enterokynase
Term
Where does the Duct of Wirsung enter the duodenum?
Definition
At the ampulla of Vater
Term
What is the name of the accessory duct that runs parallel to the Duct of Wirsung?
Definition
The Duct of Santorini
Term
What type of epithelium lines the centroacinar ducts?
Definition
Cuboidal epithelium
Term
What type of epithelium lines the intralobular ducts?
Definition
Low columnar-cuboidal epithelium
Term
What type of epithelium lines the interlobular ducts?
Definition
tall columnar epithelium
Term
What type of epithelium lines the Duct of Wirsun and Santorini?
Definition
tall columnar epithelium
Term
In what part of the pancreas do the endocrine secretions originate?
Definition
The Islets of Langerhans
Term
What is the blood supply for the islets?
Definition
fenestrated capillaries
Term
What type of nerves are found on the islets?
Definition
unmyelinated, autonomic nerve fibers.
Term
What are the 3 cells types that are found in the islets that have clearly described functions?
Definition
Alpha, Beta, Delta
Term
What is the secretory product of Alpha cells?
Definition
Glucogon
Term
What is the secretory product of Beta cells?
Definition
Insulin
Term
What is the secretory product of Delta cells?
Definition
Somatostatin
Term
Which cell type in the islets are the most abundant?
Definition
Beta Cells
Term
Describe pancreatities?
Definition
inflammation produced when exocrine secretions of the
Term
Pancreatic carcinomas usually arise in what part of the pancreas?
Definition
The duct cells of the exocrine pancreas
Term
The loss or inactivity of beta cells leads to which type of diabetes?
Definition
Type I
Term
The resistance to insulin and a fasting glucose level above 125mg/dl leads to which type of diabetes?
Definition
Type II
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