Podcast
Questions and Answers
What is one of the primary functions of the oral mucosa?
What is one of the primary functions of the oral mucosa?
- Hearing
- Olfaction
- Protection (correct)
- Vision
Which of the following areas is covered by lining mucosa?
Which of the following areas is covered by lining mucosa?
- Floor of the mouth (correct)
- Gingiva
- Dorsal surface of the tongue
- Palate
What is a key characteristic of the lining mucosa in health?
What is a key characteristic of the lining mucosa in health?
- Dry surface
- Rigid structure
- Moist surface (correct)
- Rough texture
The oral mucosa can be classified into three main types. Which is NOT one of them?
The oral mucosa can be classified into three main types. Which is NOT one of them?
Which type of epithelium is most commonly associated with the lining mucosa?
Which type of epithelium is most commonly associated with the lining mucosa?
What is one of the roles of the oral mucosa regarding underlying structures?
What is one of the roles of the oral mucosa regarding underlying structures?
What is NOT a visual characteristic of healthy lining mucosa?
What is NOT a visual characteristic of healthy lining mucosa?
Which of the following areas is typically associated with masticatory mucosa?
Which of the following areas is typically associated with masticatory mucosa?
What type of epithelium is most commonly associated with masticatory mucosa?
What type of epithelium is most commonly associated with masticatory mucosa?
Which of the following areas is covered by masticatory mucosa?
Which of the following areas is covered by masticatory mucosa?
What is a noted feature of masticatory mucosa in terms of texture?
What is a noted feature of masticatory mucosa in terms of texture?
Which of these is true regarding the distribution of infection in masticatory mucosa?
Which of these is true regarding the distribution of infection in masticatory mucosa?
Which type of mucosa is associated with the presence of lingual papillae?
Which type of mucosa is associated with the presence of lingual papillae?
What happens to nonkeratinised epithelium in response to trauma?
What happens to nonkeratinised epithelium in response to trauma?
Sutures are typically required after surgical procedures in which type of mucosa?
Sutures are typically required after surgical procedures in which type of mucosa?
What is indicated by the term hyperkeratinisation?
What is indicated by the term hyperkeratinisation?
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Study Notes
Oral Mucosa
-
The oral mucosa is a protective membrane lining the oral cavity.
-
Functions:
- Protection
- Secretion
- Sensation
Classification of Oral Mucosa
-
Lining mucosa:
- Found on:
- Buccal mucosa
- Labial mucosa
- Alveolar mucosa
- Floor of the mouth
- Ventral surface of the tongue
- Soft palate
- Characteristics:
- Softer surface texture
- Moist surface
- Stretchable and compressible
- Histology:
- Nonkeratinized stratified squamous epithelium
- Clinical features:
- Requires sutures for surgical incisions
- Easier and less painful local anesthetic injections
- Prone to rapid infection
- Found on:
-
Masticatory mucosa:
- Found on:
- Attached gingivae
- Hard palate
- Dorsum of the tongue
- Characteristics:
- Rubbery surface texture
- Resiliency (firm base)
- Histology:
- Keratinized stratified squamous epithelium
- Clinical features:
- Rarely requires sutures
- Difficult and painful local anesthetic injections
- Infections cause greater discomfort
- Found on:
-
Specialized mucosa:
- Found on:
- Lingual papillae
- Histology:
- Specialized epithelial structures
- Found on:
Changes in Oral Mucosa Appearance
- Hyperkeratinization:
- Nonkeratinized epithelium transforming into keratinized epithelium due to frictional or chemical trauma.
- Histologically similar to orthokeratinized epithelium with a keratin and granular layer.
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