Download No Slide Title

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

page
1
page
2
page
3
page
4
page
5
page
6
page
7
page
8
page
9
page
10
page
11
page
12
page
13
page
14
page
15
page
16
page
17
page
18
page
19
page
20
page
21
page
22
page
23
page
24
page
25
page
26
page
27
page
28
page
29
page
30
page
31
page
32
page
33
page
34
page
35
Document related concepts
no text concepts found
Transcript 
Histology:
The Digestive System
By Andrew W. Parsons
Copyright 2000, All Rights Reserved.
Material is in logical order: see texts, lab. outline for
characteristics
To advance to next slide:
-click mouse or “page down”
To return to the previous slide:
- press “page up”
Histology: four layers:
-Mucosa
-epithelium: stratified squamous or simple columnar
-lamina propria: areolar c.t.
-muscularis mucosa: smooth muscle
-Submucosa: dense irregular c.t.
-Muscularis externa: skeletal muscle (upper esophagus), smooth muscle elsewhere
(-oblique layer: stomach only)
-circular layer
-longitudinal layer
-Serosa or adventitia: simple squamous epith., areolar c.t.
The Esophagus
-Stratified squamous epithelium
-Skeletal muscle in m. externa
-Adventitia
The esophagus: 100X
Mucosa
Submucosa
Muscularis externa
Adventitia
The esophagus: 450X
Mucosa
Epithelium
Lamina propria
Muscularis mucosa
Submucosa
The esophagus: 100X
Adventitia
Muscularis externa
Submucosa
Mucosa
The esophagus: 450X
Muscularis externa
Submucosa
Muscularis mucosa
Lamina propria
Epithelium
The Stomach
-Simple columnar epithelium
-No villi
-Epithelium all goblet cells
-Glands are not obvious
-Smooth muscle in m. externa
The stomach: 40X
Muscularis externa:
THREE layers inner oblique,
middle circular,
outer longitudinal
Submucosa
Mucosa
Mucosa of the stomach: 450X
Lamina propria: areolar c.t.
Epithelium: all goblet cells
Glands are NOT obvious
Mucosa & submucosa of the stomach: 450X
Mucosa
Muscularis mucosa
Gastric glands are NOT obvious
Submucosa
Submucosa & muscularis externa of the stomach: 450X
Muscularis mucosa
Submucosa
Muscularis externa
The Small Intestine
-Villi
-Simple tubular glands
The small intestine: 40X
Villus
Muscularis
externa:
-circular
-longitudinal
Submucosa
Intestinal glands
Mucosa
Villus of small intestine: 450X
Lamina propria
Epithelium
Mucosa & submucosa of the small intestine: 450X
Intestinal gland
Lamina propria
Submucosa
Mucosa
Muscularis
mucosa
Submucosa & muscularis externa of the small intestine: 450X
Submucosa
Muscularis externa:
inner circular layer
Muscularis externa of the small intestine: 450X
Muscularis externa:
inner circular layer
Muscularis externa:
outer longitudinal layer
Submucosal or Brunner’s glands of the duodenum: 100X
Mucosa
Submucosa with
submucosal glands
Muscularis externa:
inner circular layer
The Colon
-No villi
-Simple tubular glands
-M. externa has “folds”
The colon: 40X
Submucosa
Muscularis externa:
Mucosa
Mucosa of the colon: 450X
Intestinal gland
Epithelium
Lamina propria
Mucosa & submucosa of the colon: 450X
Intestinal gland
Submucosa
Mucosa
Muscularis
mucosa
Lamina propria
The colon: 450X
Muscularis externa
-Inner circular layer:
has these “funny” folds
Submucosa
Mucosa
Muscularis
mucosa
Muscularis externa of the colon: 450X
Muscularis externa
-Inner circular layer:
has these “funny” folds
Serosa & muscularis externa of the colon: 450X
Outer longitudinal layer
Serosa
Inner circular layer
The Liver
-Hepatic lobules
-Central vein & sinusoids
-Triads:
-Bile ducts
-Hepatic artery
-Hepatic portal vein
The Liver: 40X
Hepatic lobule
The Liver: 450X
Central vein
Hepatocytes
Sinusoids
Triad of the Liver: 450X
Hepatic portal vein
Hepatic artery
Bile duct
Triad of the Liver: 450X
Hepatic artery
Hepatic portal vein
Bile duct
The Pancreas
-Pancreatic acini
-Pancreatic islets
The Pancreas: 40X
Islet
Acinous glands
The Pancreas: 450X
Islet
Acinous glands
The End
Presentation & Photographs by
Andrew W. Parsons
Copyright 2000, All Rights Reserved.
Related documents