Colon Crypts of Lieberkuhn Mucosa. GI Tract MucosaSubmucosa Circular Portion of the Muscularis Externum Longitudinal Portion of the Muscularis Externum.

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Presentation transcript:

Colon Crypts of Lieberkuhn Mucosa

GI Tract MucosaSubmucosa Circular Portion of the Muscularis Externum Longitudinal Portion of the Muscularis Externum

Mesothelium Simple Squamous Epithelium Cells

Esophagus Epithelium Lamina Propria Muscularis Mucosa Mucosa Submucosa (connective tissue) Circular Portion of the Muscularis Externum Longitudinal Portion of the Muscularis Externum Muscularis Externum

Transition Between Esophagus & Cardiac Portion of the Stomach EsophagusCardiac Portion of the Stomach Stratified Squamous Epithelium Simple Columnar Epithelium Mucosal Glands

Stomach Mucosa Submucosa Muscularis Externum

Stomach Gastric Gland Pits Simple Columnar Epithelium

Pyloric Portion of the Stomach Pyloric Glands Lamina Propria Muscularis Mucosa Submucosa

Transition for Pylorus to Duodenum PylorusDuodenum Glands of Brunner

Duodenum (Small Intestine) Villi Crypts of Lieberkuhn Submucosa Muscularis Externum

Duodenum (Small Intestine) Crypts of Lieberkuhn Submucosa Glands of Brunner (Secrete alkaline mucus & found only in duodenum)

Cross-Section of Crypts Crypts of Lieberkuhn (secretes intestinal digestive enzymes & mucus Lamina Propria

Jejunem (Small Intestine) Villi (increases surface area) Crypts of Lieberkuhn

Cross-Section of Villi Muscularis Mucosa Circular Portion of the Muscularis Externum Longitudinal Portion of the Muscularis Externum Villi Crypts of Lieberkuhn

Cross-Section of Villi Lamina Propria Goblet Cells (secret mucus For lubrication)

Jejunem (Small Intestine) Villi Mucosa Submucosa

Ileum (Small Intestine) Crypts of Lieberkuhn Peyer’s Patches (dense lymphatic tissue; located in submucosa)

Appendix Fat Cells Crypts of Lieberkuhn

Appendix Crypts of Lieberkuhn Goblet Cells Lymphocytes (in Lamnia Propria)

Colon Serosa (finished edge; if the organ is against the body cavity wall then a serosa is not needed)

Muscularis Externum Circular Portion Longitudinal Portion Aurbach’s Myenteric Plexus

Aurbach’s Plexus Neurons (Dark Spots)