Small Intestine

Front 1

Slippery serous membrane of the abdominopelvic cavity; visceral portion covers the external surfaces of most digestive organs while the parietal portion lines the body wall

Back 1

peritoneum

Front 2

a double layer of peritoneum; a sheet of two serous membranes fused back to back, that extends to the digestive organs from the body wall.

Back 2

messentery

Front 3

finderlike projections of the mucosa, over 1mm high, that give it a velvety texture; involved in teh absorption of digested foods.

Back 3

villi

Front 4

the excptionally long, densely packed projections on the villi; involved in the digestion of carbohydrates and proteins in the small intestine

Back 4

microvilli

Front 5

deep, permanent folds of the mucosa and submucosa of the small intestine

Back 5

plicae circulares

Front 6

a wide lyph capillary of the core of each villus; help in the absorption of food.

Back 6

lacteals

Front 7

the portion of the small intestine between the stomach and the jejunum

Back 7

duodenum

Front 8

mucous secreting glands found in the submucosa of the duodenum only; they produce an alkaline mucus that helps neutralize the acidic chyme moving in from the stomach

Back 8

brunners glands

Front 9

the portion of the small intestine between the duodenum and the ileum; approx. 8' long

Back 9

jejunum

Front 10

the portion of the small intestine between the jejunum and the large intestine; approx. 12' long

Back 10

ileum

Front 11

aggregated lymphoid follicles of the small intestine; found in increasing abundance toward the end of the small intestine; tasked with preventing the high numbers of bacteria found there from entering the bloodstream

Back 11

peyers patches