3B Scientific 3B MICROanatomy™ Digestive System - 20-times magnified - Manual (Page 2)

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Oesophagus
Tunica mucosa:
1 Epithelium mucosae (nonkeratinized
squamous epithelium)
2 Lamina propria
3 Lamina muscularis mucosae
4 Tela submucosa
5 Glandula oesophagea
Tunica muscularis:
6 Stratum circulare
7 Stratum longitudinale
8 Tunica adventitia
Fundus gastricus
Tunica mucosa:
1 Epithelium mucosae (Foveola gastrica)
2 Lamina propria
3 Glandula gastrica
4 Lamina muscularis mucosae
5 Tela submucosa
Tunica muscularis:
6 Stratum circulare
7 Stratum longitudinale
8 Tunica adventitia
9 Tunica serosa
10 Peptic cell
11 Parietal cell
12 Mucous neck cell
Jejunum (Intestinum tenue)
Tunica mucosa:
1 Epithelium mucosae
2 Crypta
3 Lamina propria
4 Lamina muscularis mucosae
5 Tela submucosa
Tunica muscularis:
6 Stratum circulare
7 Stratum longitudinale
8 Tunica adventitia
9 Tunica serosa
10 Endocrine cell
11 Paneth’s granular cell
Colon
Tunica mucosa:
1 Epithelium mucosae
2 Crypta
3 Lamina propria
4 Lamina muscularis mucosae
5 Tela submucosa
Tunica muscularis:
6 Stratum circulare
7 Stratum longitudinale
8 Tunica adventitia
9 Tunica serosa
10 Goblet cell
11 Enterocyte
Latin
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The model illustrates the structure of the fine tissues
of four characteristics sections of the digestive
system:
• Esophagus
• Stomach
• Small intestine
• Large intestine
The structures of the walls of the digestive system
are basically the same, but modified from section
to section. The following layers can be found in all
sections (from inside to outside):
• Tunica mucosa (mucous membrane):
Epithelium mucosae
Lamina propria
Lamina muscularis mucosae
• Tela submucosa (sub-mucous tissue)
• Tunica muscularis (muscular tunic):
Stratum circulare
Stratum longitudinale
• Tunica adventitia and Tela subserosa (external
coat)
• Tunica serosa (serous tunic):
Lamina propria serosae
Lamina epithelialis
The front of the model, from top to bottom, shows
a magnified view in histological section of the indi-
vidual sections of the digestive system and their
fine tissue structures.
On the back of the model, highly magnified views
of didactically interesting areas of each of the dige-
stive system sections shown on the front are
emphasized.
A Esophagus [gullet]
Mucous membrane:
1 Outer mucous tissue (nonkeratinized squa-
mous epithelium)
2 Actual mucous membrane
3 Muscle layer in the mucous membrane
4 Sub-muscous tissue
5 Esophagal gland
Tunica muscularis:
6 Circular layer
7 Longitudinal layer
8 External coat
B Fundus of stomach
Mucous membrane:
1 Outer mucous tissue (small depression in
the mucous membrane of the stomach)
2 Actual mucous membrane
3 Mucous gland of the fundus of stomach
4 Muscle layer in the mucous membrane
5 Sub-muscous tissue
Muscular tunic:
6 Circular layer
7 Longitudinal layer
8 External coat
9 Serous tunic
10 Peptic cell
11 Parietal cell
12 Mucous neck cell
C Jejunum (small intestine)
Mucous membrane:
1 Outer mucous tissue
2 Crypt
3 Actual mucous membrane
4 Muscle layer in the mucous membrane
5 Sub-muscous tissue
Muscular tunic:
6 Circular layer
7 Longitudinal layer
8 External coat
9 Serous tunic
10 Endocrine cell
11 Paneth’s granular cell
D Colon
Mucous membrane:
1 Outer mucous tissue
2 Crypt
3 Actual mucous membrane
4 Muscle layer in the mucous membrane
5 Sub-muscous tissue
Muscular tunic:
6 Circular layer
7 Longitudinal layer
8 External coat
9 Serous tunic
10 Goblet cell
11 Enterocyte
3B MICROanatomy™ Digestive System
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