The oral cavity is lined by a mucous membrane (the oral mucosa) consisting of a stratified squamous epithelium, which may or may not be keratinized, and an underlying connective tissue layer, the lamina propria.

Classification of oral mucosa membrane according to the functions

MCQS

1. The position of mucogingival line

a) Shifts apically with age
b) Shifts coronally with age
c) Constant throughout the life
d) None of the above

Answer C
The attached gingiva is separated from the alveolar mucosa by mucogingival line. The free gingiva is separated from the attached gingiva by free gingival groove.