Question

question 13 (1 point) saved peptic ulcers in the stomach happen when the protective mucus is weakened gastric juice contacts living tissue helicobacter pylori prevents the production of mucus hydrochloric acid enters the duodenum all of the above

Explanation:

Peptic ulcers in the stomach occur when the protective mucus layer is weakened, allowing gastric juice (which contains hydrochloric acid) to contact living tissue. Helicobacter pylori can contribute by damaging the mucus - producing cells and thus weakening the mucus layer. Hydrochloric acid entering the duodenum is not directly the cause of stomach peptic ulcers. The main factors involve the disruption of the mucus - acid balance in the stomach, and Helicobacter pylori does not prevent mucus production entirely but impairs its normal function. The most direct cause is when the protective mucus is weakened and gastric juice contacts living tissue.

Answer:

A. the protective mucus is weakened, B. gastric juice contacts living tissue