Digestive Organ structures

Villi

Finger-like extensions increasing surface area in the small intestines

Rugae

Flods in the gastric mucosa

Circular Folds

Permanent deep ridges in the small intestines

haustra

a series of gathered pouches in large intestine

vestibule

area b/t lips and teeth

hard palate

bony palate b/t mouth and nose

saliva

fluid that begins digestion of carbs

microvilli

forms a brush border; extension of epithelial cells

colon (large intestine)

has regions called ascending, transverese, descending, and sigmoid

uvula

keeps food and fluids from going up into nasopharynx

pyloric canal/pylorus

narrowed region of stomach before small intestine

cardiac

region of stomach where lower esophageal sphincter meets stomach

visceral peritoneum

serous membrane covering abdominal organs

parietal peritoneum

serous membrane lining abdominal wall

ileocecal sphincter

spincter connecting small and large intestine

Pyloric Sphincter

spincter valve b/t stomach and duodenum