Deck 14: Liver, Gallbladder, and Exocrine Pancreas

Question 1

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

Answer 1

D

Question 2

Which ultrastructure feature is characteristic of pancreatic acinar cells?

A) Abundant apical microvilli
B) Apically located secretion vesicles
C) Basally located mitochondria enclosed by infoldings of the plasma membrane
D) Mitochondria with tubular cristae
E) Numerous lipid droplets

Answer 2

B

Question 3

The basal portion of a pancreatic acinar cell stains intensely with hematoxylin because of the presence of:

A) DNase
B) Golgi stacks
C) Laminin
D) Microtubules
E) Rough endoplasmic reticulum

Answer 3

E

Question 4

Hepatic Kupffer cells:

A) Degrade bilirubin
B) Have round,euchromatic nuclei and a cuboidal-shaped cytoplasm
C) Phagocytize dying red blood cells
D) Store vitamin A
E) Synthesize angiotensinogen

Question 5

Which cell type in the liver may not infrequently possess two nuclei?

A) Centroacinar cell
B) Hepatocyte
C) Ito cell
D) Kupffer cell
E) Sinusoidal endothelial cell

Question 6

Which structure is NOT present in a hepatic portal triad?

A) Bile duct
B) Central vein
C) Hepatic artery
D) Lymphatic vessel
E) Hepatic portal vein

Question 7

The epithelium of a bile duct typically can be classified as:

A) Pseudostratified columnar epithelium
B) Simple cuboidal epithelium
C) Simple squamous epithelium
D) Stratified squamous epithelium
E) Transitional epithelium

Question 8

Pancreatic centroacinar cells:

A) Are contractile and promote the movement of secretions
B) Contain clusters of zymogen granules
C) Phagocytize dying cells
D) Remove bile salts from the common bile duct
E) Represent the initial portions of intercalated duct epithelia