Ch.22 The Digestive System

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1

serosa

the outermost layer of the intraperitoneal organs is the visceral peritoneum.

2

splanchnic circulation

includes those arteries that branch off the abdominal aorta to serve the digestive organs and the hepatic portal circulation.

3

enteric nervous system

is the in-house nerve supply of the alimentary canal.

4

muscularis externa

a scant layer of smooth layer cells that produces local movements of the mucosa that can enhance absorption and secretion.

5

alimentary canal (GI tract)

is the continuous muscular tube that winds through the body from the mouth to the anus.

6

Defectation

eliminates indigestible substances from the body via the anus in the form of feces.

7

Peritonitis

inflammation of the peritoneum.

8

Short reflexes

are mediated entirely by enteric nervous system plexuses in response to stimuli with the GI tract.