GENERAL HISTOLOGY

Detailed explanation-1: -The oral mucosa that covers the underside of the tongue (Figure 12-31), inside of the lips (Figure 12-32), cheeks, floor of the mouth, and alveolar processes as far as the gingiva (see Figure 12-30) is subject to movement. These regions, together with the soft palate, are classified as lining mucosa.

Detailed explanation-2: -The type of epithelium that covers the lining mucosa is a non-keratinized stratified squamous epithelium [1]. The rigid mucosa tightly bound to the underlying bone in the attached gingiva and hard palate is known as masticatory mucosa.

Detailed explanation-3: -Lining mucosa includes the buccal mucosa, labial mucosa, alveolar mucosa, as well as the mucosa lining the ventral surface of the tongue, floor of the mouth, and soft palate. Histologically, lining mucosa is a type that is associated with nonkeratinized stratified squamous epithelium (Figure 9-2).