Anatomy A215 Virtual
This virtual slide of the SMALL INTESTINE is a cross section of the
ileum. In this slide be sure you can identify the following:
- Simple columnar epithelium (with goblet cells):
- The epithelium covers finger-like villi (singular:
projecting into the opening of the intestine, each with a
lacteal (lymph capillary) in its center.
- Microvillous border—a thin line indicating the very
small microvilli on the free surface of the epithelial cells.
- Muscularis — note orientation of smooth muscle into an
inner circular layer and an outer longitudinal layer.
The little box in the image
above indicates the where the picture to the left came from. Using
this as a guide, be sure you can identify the elements outlined
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