Structure that suspends the small intestine from the posterior body wall

Mesentery

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

villi

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

peyer's patches

deep folds of the mucosa and submucosa that extend completely or partially around the circumference of the small intestine

circular folds

regions that break down foodstuffs mechanically

oral cavity, stomach

mobile organ that manipulates food in the mouth and initiates swallowing

tongue

conduit for both air and food

pharynx

three structures continuous with and representing modifications of the peritoneum

greater omentum, ileoceal valve, lesser omentum

the gullet; no digestive/absorptive function

esophagus

folds of the gastic mucosa

rugae

sacculations of the large intestine

haustra

projections of the plasma membrane of a mucosal epithelial cell

microvilli

valve at the junction of the small and large intestines

ileoceal valve

primary region of food and water absorption

small intestine

membrane securing the tongue to the floor of the mouth

frenulum

absorbs water and forms feces

large intestine

area between the teeth and lips/cheeks

vestibule

wormlike sac that outpockets from the cecum

appendix

initiates protein digestion

stomach

structure attached to the lesser curvature of the stomach

lesser omentum

organ distal to the stomach

small intestine

valve controlling food movement from the stomach into the duodenum

pyloric valve

posterosuperior boundary of the oral cavity

soft palate

location of the hepatopancreatic sphincter through which pancreatic secretions and bile pass

small intestine

serous lining of the abdominal cavity wall

parietal peritoneum

principal site for the synthesis of vitamin K by microorganisms

large intestine

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

anus

bone supported anterosuperior boundary of the oral cavity

hard palate

differentiate between the colon and the large intestine

The Large Intestine extends from the Ileoceal valve to anus but the colon is part of the large intestine and is divided into ascending, descending, and sigmoid colon

How is the muscularis externa of the stomach modified? How does this modification relate to the function of the stomach?

1. It has a 3rd oblique muscle layer
2. vigorous churning occurs here

the tubelike digestive system canal that extends from mouth to the anus is known as the _____ canal or ____ tract

1. alimentary
2. digestive (GI) tract

Name the subdivision and functions of:
Serosa or adventitia

Sub: None
Function: Protection, anchoring, reduce friction

Name the subdivision and functions of:
Muscularis Externa

Sub: circular, longitudinal layers
Fun: churning, mixing

Name the subdivisions and functions of:
submucosa

Sub: None
Fun: protection

Name the subdivisions and functions of:
Mucosa

Sub: epithelium, lamina propria, muscularis mucosa
Fun: absorption, secretion