GASTROINTESTINAL EXAM 2026
COMPLETE QUESTION COMPENDIUM
WITH CORRECT SOLUTIONS
◉Primary Digestive Organs. Answer: Mouth, most of pharynx,
esophagus stomach, small intestines, large intestines.
◉Mobility. Answer: the capability of the GI tract to mix and move
material along its length
◉Mechanical Digestion. Answer: Food being physically manipulated
by the teeth cutting and grinding, and then the smooth muscle of the
stomach and small intestines churning the food.
◉Chemical Disgestion. Answer: Food being broken down into
smaller molecules by hydrolysis and enzymes made by the GI tract
to cause a catabolic reaction resulting in energy.
◉4 Layers of the GI Tract (from deep to superficial). Answer:
Mucosa, Submucosa, Muscularis, Serosa
, ◉3 Layers of the Mucosa (from deep to superficial). Answer:
Epithelium, Lamina propria, Muscularis mucosae
◉Epithelium of the Mucosa. Answer: 1st layer of Mucosa
*Non-Keratinized Stratified Squamous: Found in mouth pharynx,
esophagus, and anal canal for the function of protection.
OR
*Simple Columnar Epithelium: Found in the stomach and intestines
and for the function of secretion and absorption.
◉Lamina propria of the Mucosa. Answer: 2nd layer of Mucosa
Contains blood, lymphatic vessels, and MALT (Mucosa-associated
lymphatic tissue).
◉Muscularis mucosae of the Mucosa. Answer: 3rd layer of Mucosa
Smooth muscle fibers creating fold that increase surface area for
optimal absorption and digestion.
COMPLETE QUESTION COMPENDIUM
WITH CORRECT SOLUTIONS
◉Primary Digestive Organs. Answer: Mouth, most of pharynx,
esophagus stomach, small intestines, large intestines.
◉Mobility. Answer: the capability of the GI tract to mix and move
material along its length
◉Mechanical Digestion. Answer: Food being physically manipulated
by the teeth cutting and grinding, and then the smooth muscle of the
stomach and small intestines churning the food.
◉Chemical Disgestion. Answer: Food being broken down into
smaller molecules by hydrolysis and enzymes made by the GI tract
to cause a catabolic reaction resulting in energy.
◉4 Layers of the GI Tract (from deep to superficial). Answer:
Mucosa, Submucosa, Muscularis, Serosa
, ◉3 Layers of the Mucosa (from deep to superficial). Answer:
Epithelium, Lamina propria, Muscularis mucosae
◉Epithelium of the Mucosa. Answer: 1st layer of Mucosa
*Non-Keratinized Stratified Squamous: Found in mouth pharynx,
esophagus, and anal canal for the function of protection.
OR
*Simple Columnar Epithelium: Found in the stomach and intestines
and for the function of secretion and absorption.
◉Lamina propria of the Mucosa. Answer: 2nd layer of Mucosa
Contains blood, lymphatic vessels, and MALT (Mucosa-associated
lymphatic tissue).
◉Muscularis mucosae of the Mucosa. Answer: 3rd layer of Mucosa
Smooth muscle fibers creating fold that increase surface area for
optimal absorption and digestion.
