Physiology The normal defensive mechanism for protection of gastric mucosa against acid-pepsin digestion include which of the following? A Secretion of bicarbonate into gastric mucosa B Adequate blood supply C Overproduction of PG by gastric epithelium D All of the above 💡 Explanation The normal defensive mechanism for protection of gastric mucosa against acid-pepsin digestion include which of the following? ✓ Correct Answer: D. All of the above