more Ch. 7 Flashcards
In the esophagus, the lamina propria portion of the mucosa is made up of what?
loose areolar CT
What is the function of the lamina propria?
to produce neutral mucus to protect esophageal epithelium
In the esophagus, what is the last 1-2 in. of the primary adventitia (after the diaphragm) considered?
Serosa
Which luminal wall layer of the stomach is the location of AVA (arteriovenous anastomosis)?
Submucosa
What is the function of the stomach AVA?
to shut down activity & secretion FAST
‘Normal’ muscle pattern =
inner circular, outer longitudinal
What is the Stomach Muscularis Externa pattern?
1) innermost oblique
2) middle circular
3) outer longitudinal
What is the well developed inner circular layer of muscle in the ME?
Anatomical Sphincter
What has NO thickening of circular layer of ME?
Physiological Sphincter
What part of the small intestine is being described…All of jejunum and ileum; first and last 1-2 cm’s of duodenum.
Serosa/ Adventitia Serosa
What part of the GI tract is the only area with both serosa and adventitia?
small intestine
What is the function of the appendix?
humoral immunity and reservoir for good bacteria
numerous lymph nodules found within submucosa
What is the primary function of the colon?
absorption of water
What 2 things do the colon mucosa lack?
- villi
- paneth cells
Does the rectum contain any tenai coli in its ME?
no
