INTESTINAL JUICE

clear to pale, yellow, watery secretion composed of hormones, digestive enzymes, mucus, and neutralizing substances released from the glands and mucous-membrane lining of the small and large intestines. Some of the functions of intestinal juice are to neutralize hydrochloric acid coming from the stomach; to release gastrointestinal hormones into the bloodstream; and to provide digestive enzymes, which facilitate the digestion and absorption of food. Intestinal-juice secretions are liberated under the influence of hormones, the vagus nerve, and the mechanical stimulation produced by the presence of food.