which part of the gi tract contains highly acidic digestive juices
The stomach is the part of the GI tract which contains hydrochloric acid. Hydrochloric acid is made by the stomach's parietal cells, secreted into the stomach's lumen, where â¦it has an acidic pH around 2-3, which is very acidic (roughtly the same as neat lemon juice). Hydrochloric acid and pepsin (an acid protease), cooperate in digesting proteins.