KGF can specifically stimulate the epithelial mitogenesis and regulate the interaction of mesenchyma and epithelia,so it has broad biological functions.
The necrotic epithelium becomes embedded in exuding fibrin and red and white cells,so that a grayish pseudomembrane is formed-commonly over the tonsils,pharynx or larynx.
It is indicated that chimozine is relative to the forming of peritrophic membrane (PMb) and the den-sity of PMb determined whether Nosema Apis Zander can inject in the ventriculus epithelium.
Note the clear vacuoles in the colloid next to the epithelium where the increased activity of the epithelium to produce increased thyroid hormone has led to scalloping out of the colloid.
In chronic laryngitis the normal columnar cells undergo dysplasia, which is when they transform into squamous epithelium to adapt to the chronic irritation.