Ito cells:
a. Are Amine Precursor Uptake and Decarboxylation (APUD) cells and release a product that regulates pancreatic secretory activity
b. Are found mainly at the junction of bile canaliculi with bile ducts
c. Are specialized columnar epithelial cells in the gallbladder
d. Store large amounts of lipid and vitamin A
e. Synthesize bile salts
ANS: D
Ito cells represent the connective tissue elements of the liver. They synthesize collagen and store lipids such as vitamin A.
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