Final Review: Digestive Glands/Liver Flashcards
What cell is unique to the pancreas and is associated wtih intercalated ducts?
The centroacinar cell
The intercalated ducts are composed of ________ epithelium and secrete __________ and _______
low cuboidal, bicarbonate ions and water.
What do acinar cells secrete?
A variety of digestive enzyme
What do beta cells secrete?
Insulin
What do alpha cells secrete?
glucagon
Delta cells produce ____________
Somatostatin
How is the classic hepatic lobule characterized?
By the central vein being located in the middle of the lobule and portal triads at the angles of the lobule.
How is the portal organization characterized?
By parts of three classic lobules that drain into the bile duct in the portal triad that forms the center of this lobule.
How is the liver acinus lobule defined?
The general area between two central veins of two adjacent classic lobules.
The portal triad consists of……
a portal venule
a hepatic arteriole
and a bile duct.
Where are perisinusoidal cells located?
in the space of Disse
What are the the functions (3) of perisinusoidal cells?
- Store vitamin A
- Produce collagen fibers and ECM components
- And during cirrhosis transform into myofibroblasts and produce collagen type I.
What are macrophages in the liver called? Where are they derived from?
Kuppfer cells, derived from monocytes.
