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An investigator is isolating mucin-secreting cells to compare surface receptor types on cells from various organs. Tissue samples are exposed to trypsin, and then passed through a narrow-bore needle. Which of the following tissues would most likely yield the highest percentage of mucus-secreting cells?
A. Esophageal mucosa
B. Oral mucosa
C. Parotid gland
D. Sublingual gland
E. Submandibular gland

Source: Kaplan Q bank
 
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