Transverse Section Of Ileum
The microvilli border significantly increases sa of the plasma membrane 100x allowing for more absorption of digested food materials the membrane is embedded with digestive enzymes e g.
Transverse section of ileum. Location arrangement of the. The terminal ileum is the distal end of the small intestine that intersects with the large intestine. In a right colectomy the surgeon removes the.
The terminal ileum is located on the right side of the abdominopelvic cavity in the umbilical and hypogastric regions. The ileum is the main site for absorption of digested food however cellulose lignin bile pigments bacteria and intestinal cells are not absorbed into the body. H 3 1 draw and label a diagram showing a transverse section of the ileum as seen under a light microscope.
A laparoscopic ileocolectomy is an operation that removes a diseased section of the ileum last segment of the small bowel and ascending colon. H 3 2 explain the structural features of an epithelial cell of a villus as seen in electron micrographs including microvilli mitochondria pinocytotic vesicles and tight junctions. Draw and label a diagram showing a transverse section of the ileum as seen under a light microscope shown below.
The ileum ˈ ɪ l i əm is the final section of the small intestine in most higher vertebrates including mammals reptiles and birds in fish the divisions of the small intestine are not as clear and the terms posterior intestine or distal intestine may be used instead of ileum. It contains the ileocecal sphincter a smooth muscle sphincter that controls the flow of chyme into the large intestine. This section of the small intestine starts at the duodenojejunal flexure and ends at the ileocecal valve where it runs into the cecum.
The illeoceal valve lies between the ileum and the cecum. It crosses the abdomen from the ascending colon at the hepatic or right colic flexure with a downward convexity to the descending colon where it curves sharply on itself beneath the lower end of the spleen forming the splenic or left colic flexure. Its main function is to absorb vitamin b 12 bile salts and whatever products of digestion that were not.
10 1055 b 0034 80023 12 the jejunum and ileum anatomy general facts the total length of the jejunum ileum is 5 6 m of which two fifths is the jejunum and three fifths the ileum. University of delaware library 181 south college avenue newark de 19717 5267 usa. The structural features of an epithelial cell of a villus.