Functions of parts of a villus.- Goblet cells - produces mucus and lubricates.
- Muscular mucosa - layer of muscles that help the villus to move into contact with food.
- Columnar epithelial cells - single layer of cells that allows the products of digestion to move into the bloodstream.
- Lacteal - joins with the lymphatic system.
- Arteiole - takes blood to the liver.
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