GENERAL HISTOLOGY

TONGUE MIXED SALIVARY GLAND

ORAL CAVITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Biopsy of the oral cavity reveals morphological signs of gums. What structural features of the mucous layer of the gum can be distugnished?
A
Softly adherent to the periosteum, lamina musclutaris is well developed
B
Lamina propria and muscularis are absent
C
Strongly adherent to the periosteum, lamina propria forms high papillae, lamina musclutaris is absent
D
lamina musclutaris is absent, submucosal layer is well developed
E
Contains many small salivary glands
Explanation: 

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: -Four layers form the oral epithelium in keratinized oral mucosa, which is the case of the masticatory mucosa. Commencing from the deeper layer, we found the stratum basale followed by stratum spinosum, stratum granulosum, and stratum corneum.

Detailed explanation-3: -Histologically, the oral mucosa is formed by three layers, a surface squamous stratified epithelium, known as the oral epithelium, whose thickness and degree of keratinization depend on the location and functional requirements .

There is 1 question to complete.