AP BIOLOGY

Detailed explanation-1: -Chemical digestion in the small intestine relies on the activities of three accessory digestive organs: the liver, pancreas, and gallbladder. The digestive role of the liver is to produce bile and export it to the duodenum. The gallbladder primarily stores, concentrates, and releases bile.

Detailed explanation-2: -Pancreas: Your pancreas is located behind your stomach and is attached to both your gall bladder and your small intestines. Among other functions, the pancreas aids in digestion by producing digestive enzymes and secreting them into the duodenum (the first segment of the small intestine).

Detailed explanation-3: -Duodenum. To help break food down, the small intestine receives digestive juices from other organs in your digestive system, including your liver, gallbladder and pancreas. Ducts from these organs feed into the duodenum.

Detailed explanation-4: -The duodenum (due-uh-DEE-num). This C-shaped first part is where enzymes from the pancreas and bile from the liver are added to the chyme.

Detailed explanation-5: -Brunner glands are present in the duodenum of the small intestine. These exocrine glands are submucosal and produce a mucous product that protects the duodenum from acid released from the stomach. The alkaline nature of the secretion also activates intestinal enzymes to assist with food breakdown and absorption.