Fig. 6From: Histological and scanning electron microscopic study of the effect of UV-A radiation on the land snail Monacha obstructaA, B Photomicrograph of the intestine of Monacha obstructa showing A presence of a brush border covering the epithelial lining (above) (b), and nuclei are regularly arranged (n). After exposure to UV-A for 3 h for 2 days (below) showing irregular arrangement of nuclei (n) and absence of the brush border (b). B Snails exposed to UV-A for 3 h for three successive days suffered from destruction of both the epithelial tissue (e) and the connective tissue (ct)Back to article page