PNB 2265 Exam 3 Questions and Answers
with Verified Solutions | Latest Updated 2026
Integrated meal response path of food from mouth to rectum
Integrated meal response cephalic
phases gastric
intestinal
colonic
Two parts of GI tract alimentary canal
accessory organs
Alimentary canal mouth
esophagus
stomach
small intestines
large intestines
rectum
Accessory organs of GI trac salivary glands
liver
pancreas
gallbladder
, Peritoneum serous membrane that surrounds GI
system that is different from others bc it
folds in on itself and btwn the folds are fat
deposits
-made of parietal and visceral with
peritoneal fluid between
Parietal peritoneum layer of serous membrane that lines the
walls of the abdominal cavity
Visceral peritoneum layer of serous membrane that covers the
surface of organs
Order of tissue layers in GI serosa
tract (wall to lumen) muscularis
submucosa
mucosa
Serosa outer layer of tube that is connective
tissue wrapper that holds things together,
protects them, and is site of attachment
Muscularis externa smooth muscle layer that has two layers,
one longitudinal outer layer and one
circular inner layer with a myenteric plexis
layer btwn
Muscularis externa layers circular layer
(lumen to outer) myenteric plexis
Longitudinal layer
with Verified Solutions | Latest Updated 2026
Integrated meal response path of food from mouth to rectum
Integrated meal response cephalic
phases gastric
intestinal
colonic
Two parts of GI tract alimentary canal
accessory organs
Alimentary canal mouth
esophagus
stomach
small intestines
large intestines
rectum
Accessory organs of GI trac salivary glands
liver
pancreas
gallbladder
, Peritoneum serous membrane that surrounds GI
system that is different from others bc it
folds in on itself and btwn the folds are fat
deposits
-made of parietal and visceral with
peritoneal fluid between
Parietal peritoneum layer of serous membrane that lines the
walls of the abdominal cavity
Visceral peritoneum layer of serous membrane that covers the
surface of organs
Order of tissue layers in GI serosa
tract (wall to lumen) muscularis
submucosa
mucosa
Serosa outer layer of tube that is connective
tissue wrapper that holds things together,
protects them, and is site of attachment
Muscularis externa smooth muscle layer that has two layers,
one longitudinal outer layer and one
circular inner layer with a myenteric plexis
layer btwn
Muscularis externa layers circular layer
(lumen to outer) myenteric plexis
Longitudinal layer
