Table of Contents
What protects the digestive system?
Your stomach protects itself from being digested by its own enzymes, or burnt by the corrosive hydrochloric acid, by secreting sticky, neutralising mucus that clings to the stomach walls. If this layer becomes damaged in any way it can result in painful and unpleasant stomach ulcers.
What organ makes fluid that protects the small intestine?
The pancreas also produces large amounts of fluid that protects the lining of the small intestine from the acidic chyme (partially-digested food) that it receives from the stomach. This fluid collects in a main duct that joins with a common bile duct.
Why small intestine is coiled?
Upon closer inspection, the small intestine appears narrow and coiled. Its coiled nature, of course, helps the intestine fit within its limited allotted space within our bodies. Inside, the small intestine is covered by a soft lining that contains many villi and microvilli.
How is self digestion of the stomach and small intestine prevented?
In the lumen of the intestine, digestive enzymes are fully activated and self-digestion of the intestine is prevented by compartmentalization in the lumen of the intestine facilitated by the mucosal epithelial barrier.
Which is the most coiled part of the small intestine?
ileum
The ileum. The jejunum and the ileum are the greatly coiled parts of the small intestine, and together are about 4-6 metres long; the junction between the two sections is not well-defined.
What are the functions of the large intestine?
Large Intestine. Unlike the small intestine, the large intestine produces no digestive enzymes. Chemical digestion is completed in the small intestine before the chyme reaches the large intestine. Functions of the large intestine include the absorption of water and electrolytes and the elimination of feces.
Which is part of the small intestine absorbs nutrients?
Small & Large Intestine. Small Intestine. The small intestine extends from the pyloric sphincter to the ileocecal valve, where it empties into the large intestine. The small intestine finishes the process of digestion, absorbs the nutrients, and passes the residue on to the large intestine.
Which is an accessory organ of the small intestine?
The small intestine finishes the process of digestion, absorbs the nutrients, and passes the residue on to the large intestine. The liver, gallbladder, and pancreas are accessory organs of the digestive system that are closely associated with the small intestine. The small intestine is divided into the duodenum, jejunum, and ileum.
How is the self digestion of the stomach and small intestine prevented?
The mucosal barrier protects the stomach from self-digestion. It includes a thick coating of bicarbonate-rich mucus; the mucus is physically protective, and bicarbonate neutralizes gastric acid. Why do proteases not digest the stomach and small intestine? The stomach is protected by mucus that prevents interaction with the digestive enzymes.