Changes

In cells lining blood vessels or lung alveoli, where transportation of substances occurs through a selectively permeable surface, there is a simple flat kind of epithelium. This is called the '''simple squamous epithelium'''. Simple squamous epithelial cells are extremely thin and flat and form a delicate lining.The oesophagus and the lining of the mouth are also covered with squamous epithelium. The skin, which protects the body, is also made of squamous epithelium. Skin epithelial cells are arranged in many layers to prevent wear and tear. Since they are arranged in a pattern of layers,the epithelium is called '''stratified squamous epithelium'''.<br>

In cells lining blood vessels or lung alveoli, where transportation of substances occurs through a selectively permeable surface, there is a simple flat kind of epithelium. This is called the '''simple squamous epithelium'''. Simple squamous epithelial cells are extremely thin and flat and form a delicate lining.The oesophagus and the lining of the mouth are also covered with squamous epithelium. The skin, which protects the body, is also made of squamous epithelium. Skin epithelial cells are arranged in many layers to prevent wear and tear. Since they are arranged in a pattern of layers,the epithelium is called '''stratified squamous epithelium'''.<br>

[Image:http://science.tjc.edu/Course/BIOLOGY/1409/squamoushigh.jpg|150px]

http://science.tjc.edu/Course/BIOLOGY/1409/squamoushigh.jpg

'''Simple squamous epithelium'''

'''Simple squamous epithelium'''