These enzymes include trypsin for protein digestion, amylase for carbohydrate digestion,.
and lipase for fat digestion. When the food passes through the duodenum, the digestion is.
complete.
From the duodenum, the chyme passes to the jejunum and ileum, where tiny finger-like.
objects called villi, cover the walls. These villi start the absorption of food. During the.
absorption, food molecules enter the blood stream through the walls of the intestine. From.
the small intestine, the digested products travel to the liver. Liver cells filter the blood of.
any harmful substances such as alcohol and ammonia.
Once food has passed through the small intestine, it is mostly undigestible material and.
water. It then enters the large intestine. There are six parts to the large intestine: the.
cecum, ascending colon, transverse colon, descending colon, sigmoid colon, and rectum.
The appendix is attached near the bottom of the cecum. The appendix intercepts.
pathogenic microorganisms the enter the digestive tract. In the other parts of the large.
intestine, water and minerals are absorbed. The remaining material is then compacted into.
feces through peristalsis and passed out of the body through the rectum and the anus.
A peptic ulcer is an open sore in the mucus membrane of the stomach. While and ulcer is.
developing, part of the surface tissue breaks down, dies, and becomes inflames. There are.
two types of peptic ulcers. The first is the duodenal, which forms in the duodenum.
Gastric ulcers develop in the stomach. The pepsin, located in the stomach, can eat through.
the lining of the stomach and the duodenum. Pepsin wouild not normally eat through the.
lining of the stomach and duodenum because of mucus which is normally secreted to.
protect the walls of them. Most peptic ulcers cause pain in the upper part of the abdomen.
Peptic ulcers occur usually when the stomach is empty. People can reduce the risk of.
ulcers by not smoking and drinking alcoholic beverages.
