Brush Border Epithelial Tissue

Brush Border of Epithelial Tissue, or Brush Border, is another name for microvilli.

Microvilli are extensions of the apical surface of certain epithelial cells, particularly small intestinal enterocytes and proximal renal tubules. They increase the absorption surface of cells.

Microvilli consist of actin filaments, which are anchored in the cytoplasmic membrane by proteins. Thanks to this, microvilli are able to change shape and participate in the endocytosis of nutrients.

Thus, the brush border of epithelial tissue, or microvilli, is an important structure of some epithelial cells involved in the processes of absorption and digestion.

Brush Border tissue is a special type of epithelial tissue that is found on the surface of the cells of the lining of the gastrointestinal tract, especially in the duodenum and small intestine.

**Microvilli (Brush Border)** are microscopic folds on the surface of the cell that contain many of the enzymes needed to digest food

Microvilli also play an important role in the absorption of nutrients, drugs and toxins from food

The formation of microvilli depends on genetic factors as well as environmental factors such as diet, lifestyle and medications

However, due to their fragile structure, microvilli can be damaged by infection, surgery, or certain medications.

A significant reduction in villi can lead to malabsorption of vitamins, protein and some key minerals, which can lead to malnutrition and pathologies