GI Histology LC Flashcards
In this image, identify the deepest component of the mucosa!
The mucosa of the colon includes epithelium, lamina propria and the muscularis mucosa (deepest part).
Which of the following segments of the tubal GI tract is mostly devoid of serosa?
Esophagus
Stomach
Duodenum
Jejunum
Ileum
Cecum
ESOPHAGUS
Only the distal 1 to 2 cm of the esophagus, in the peritoneal cavity, is covered by serosa; the rest is covered by the loose connective tssue of the adventitia which belnds into the surrounding tissue.
Only the distal 1 to 2 cm of the esophagus, in the peritoneal cavity, is covered by serosa; the rest is covered by the loose connective tssue of the adventitia which belnds into the surrounding tissue.
The submucosa of the esophagus contains small mucus-secreting glands which lubricate and protect the mucosa.
In this image, identify the areas likely to have stem cells!
Stem cells for the epithelium that lines the glands at the base.
In this image, the likely source of this neoplasm is
Glandular Epithelium
Squamous Epithelium
Vascular Epithelium
GLANDULAR EPITHELIUM
The neoplastic cells are forming glands/lumens.
In this image, the likely source of this neoplasm is
Glandular Epithelium
Squamous Epithelium
Vascular Epithelium
SQUAMOUS EPITHELIUM
The neoplastic cells are in sheets and producing keratin
This mucosa is most likely from what part of the digestive tract?
Esophagus
Stomach
Small Intestine
Large Intestine
Rectum
SMALL INTESTINE
The presence of villi and goblet cells strongly suggests small intestine.
What histological features in this image favor large intestine over small intestine?
Muscularis Propria
Vessels in the submucosa
Lack of villi
Presence of Goblet cells
Lack of muscularis mucosa
LACK OF VILLI
The large intestine does not have villi.
The main function of these cells is
Production of Bile
Production of RBCs
Storage of Bile
Storage of RBCS
PRODUCTION OF BILE
These are hepatocytes (liver cells).
In this pancreas, identify the Islet of Langerhans!
Islet of langerhans is the source of endocrine function of the pancreas.
In this pancreas, identify the source of digestive enzyme!
Digestive enzymes are produced by cells of the serous acini.
This epithelium is best described as
Stratified Epithelium
Pseudostratified Epithelium
Transitional Epithelium
PSEUDOSTRATIFIED
Dysplastic colonic epithelium.
