Chapter 8, Slide 3 Transition between gingiva and alveolar mucosa
		Generally the oral epithelium is keratinized where there is the most abrasion and where the mucosa is directly connected to bone. In this micrograph, you can see the difference in appearance of the nonkeratinized stratified squamous epithelium of the alveolar mucosa and the keratinized stratified squamous epithelium of the gingiva. The keratinized epithelium has long rete pegs and corresponding connective tissue papilla. These two features help secure the epithelium to the underlying connective tissue and maintain its integrity during the application of abrasive forces (chewing).
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Legend: A, Keratinized stratified squamous epithelium (gingiva); B, Nonkeratinized stratified squamous epithelium (alveolar mucosa); C, Lamina propria; D, Rete peg; E. Connective tissue papilla