Last Modified: December, 2009. (J. Crimando)

Digestive System Histology - Small Intestine

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This view shows the wall of the SMALL INTESTINE at 25X magnification.

All four basic layers of the GI tract wall can be seen here, from superfical to deep: Serosa, Muscularis, Submucosa and Mucosa.

In this view, there are two clearly defined layers of smooth muscle, the deeper circular layer and more superficial longitudinal layer.

Also clearly visible are the numerous VILLI which are long fingerlike extensions of the mucosa that reach into the lumen of the intestine and are lined with digestive and absorptive cells.

View Other Digestive Histology Slides Here...  
Esophagus Mucosa Lining     Stomach Mucosa Lining     Small Intestine Mucosa Mucosa Lining, High     Colon Mucosa Lining    

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