Centro acinar cells, all true except:

Correct Answer: D

Rationale: Centroacinar cells are part of the pancreatic exocrine duct system, not the biliary system, which involves bile ducts.

Correct Answer: C

Rationale: The velum palati (uvula) is the posterior part of the soft palate that hangs down in the pharynx.

Correct Answer: B

Rationale: Brunner's glands are specifically found in the duodenum.

Correct Answer: C

Rationale: Lysozyme in saliva has antibacterial properties, breaking down bacterial cell walls.

Correct Answer: B

Rationale: Trypsin, a proteolytic enzyme, is secreted by the pancreas.