Anatomy of Digestive System

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created 6 years ago by Liz_Rubbo
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1

Mesentery

Structure that suspends the small intestine from the posterior body wall

2

Villi

Fingerlike extensions of the intestinal mucosa that increase the surface area for absorption

3

Peyer's Patches

Large collections of lymphoid tissue found in the submucosa of the small intestine

4

Circular folds

Deep folds of the mucosa and submucosa of the small intestine

5

Tongue

Mobile organ that manipulates food in the mouth and initiates swallowing

6

Pharynx

Conduit for both food and air

7

Esophagus

"gullet"; no digestive/absorptive function

8

Rugae

Folds of gastric mucosa

9

Haustra

Pocketlike sacs of the large intestine

10

Microvilli

Projections of the plasma membrane of a mucosal epithelial cell

11

Ileocecal Valve

valve at the junction of the small and large intestine

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Small Intestine

Primary region of food and water absorption

13

Frenulum

Membrane securing the tongue to the floor of the mouth

14

Large Intestine

Absorbs water and forms feces

15

Oral Vestibule

Area between the teeth and lips/cheeks

16

Appendix

Wormlike sac that out pockets from the cecum

17

Stomach

Initiates protein digestion

18

Lesser Omentum

Structure attached to lesser curvature of stomach

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Pyloric Valve

Valve controlling food movement from the stomach into the duodenum

20

Soft palate

Posterosuperior boundary of oral cavity

21

Anus

Region containing two sphincters through which feces are expelled from the body

22

Hard Palate

bone-supported anterosuperior boundary of the oral cavity