Middle Section Of The Small Intestine
What is the main function of stratified epithelium in the gastrointestinal tract.
Middle section of the small intestine. Secretion of mucous b. It lies in the belly button area of the abdomen. The middle section about two fifths of the length of the small intestine is called the jejunum and the last section is the ileum.
Which one of the following is the middle section of the small intestine. It is about 6 7 to 7 6 metres 22 to 25 feet long highly convoluted and contained in the central and lower abdominal cavity a thin membranous material the mesentery supports and somewhat suspends the intestines. The inner surface of the jejunum its mucous membrane is covered in projections called villi which increase the surface area of tissue available to absorb nutrients from the gut contents.
The jejunum is the middle section of the small intestine that serves as the primary site of nutrient absorption. Small nutrient particles which have been previously digested by enzymes in the duodenum. A duodenum b ascending colon c jejunum d descending colon e ileum.
There are small fingerlike projections in the wall of the jejunum called villi. Nutrients detour through the liver via the. A section of either the small or large bowel can become blocked or twisted or just stop working.
It measures around 3 feet in length. Belly distension pain constipation and vomiting are symptoms. It is the region where most digestion and absorption of food takes place.
The jejunum is specialized for the absorption through its lining by enterocytes. Enzymes and bile are carried by the pancreatic duct and bile duct into the. Small intestine a long narrow folded or coiled tube extending from the stomach to the large intestine.