Term
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Definition
MSMS
1- Mucosa
2- Sub Mucosa
3- Mucularis Externa
4- Serosa (Adventitia) |
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Term
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Definition
1- Epithelium 2- Lamina Propria 3- Muscularis Mucosa
Epithelium : Stratified Squamous in the beginning, then Simple Columnar Epithelium
Lamina Propria : C.T = Fibers (Elastic and Reticular) + Cells (Plasma cells, mast cells, histiocytes and lymphocytes) + Ground substance + blood capillaries + lymph capillaries + Mucosal glands |
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Term
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Definition
| Loose Areolar Tissue, Plexuses of Nerves (Meissner), lymph and capillaries, Lymphoid tissues and Glands (in esophagus and duodenum) |
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Term
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Definition
Skeletal Muscle in the upper osophagus and anal spincter
Smooth muscle in the remaining part.
Consisting of:
1- Outer Longitudinal Muscles = Open Helix = Widens lumen and shortens the length of osophagus
2- Inner Smooth Muscle = tight helix = Constricts lumen
O for Outer coat, O for open helix.
Auerbach's plexus (Myenteric plexus) present between the two layers. |
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Term
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Definition
Adventitia AKA FIBROSA = Connective Tissue consisting of blood vessels, lymph vessels and elastic fibers
In peritoneum, adventitia is lined by SIMPLE SQUAMOUS EPITHELIUM, now it is called SEROSA |
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