Multiple choice In ruminants, what happens in the abomasum? Water is squeezed out of food Foreign objects are caught Hydrochloric acid and enzymes aid the breakdown of food The large majority of fermentation Reveal answer Fill a bubble to check yourself C Correct answer Explanation The abomasum is the glandular portion of the ruminant stomach. It secretes hydrochloric acid and digestive enzymes to break down proteins and other nutrients.