Oral mucosa up to slide 13

Oral mucosa

The mucosa lining the oral cavity, performing functions such as protective, sensory, and secretory.

Mucous membrane

Moist lining of body cavities that communicate with the exterior.

Epithelium

Avascular basic tissue type that covers and lines external and internal surfaces.

Oral Epithelium

Avascular, superficial layer of oral mucosa overlying the connective tissue (CT) or lamina propria.

Basement Membrane

Extracellular material consisting of a basal and reticular lamina produced by epithelium and connective tissue.

Connective Tissue (CT)

Basic tissue type composed of cells and matrix that connects and supports other tissues.

Lamina Propria

Supportive layer of connective tissue (CT) beneath the epithelium in oral mucosa.

Stratified Squamous Epithelium

Type of epithelium that protects from mechanical forces; forms the 'epidermis'.

Keratinized

Type of stratified squamous epithelium providing greater protection than non-keratinized.

Non-Keratinized Epithelium

Type of epithelium found in areas requiring more flexibility and movement, such as the lining mucosa.

Lining Mucosa

Soft tissue areas in the oral cavity, such as the buccal and labial mucosa.

Masticatory Mucosa

Tissue type found in areas subject to mechanical stress, including the hard palate and attached gingiva.

Specialized Mucosa

Mucosa found on the dorsal and lateral surfaces of the tongue.

Ventral Surface of Tongue

The undersurface of the tongue, closest to the floor of the mouth.

Buccal Mucosa

Mucosa lining the inner cheeks.

Labial Mucosa

Mucosa lining the inner portions of the lips.

Soft Palate

The posterior one-third of the palate, known as the velum.

Clinical Significance of Oral Mucosa

Can reflect signs of underlying health issues, such as systemic conditions or effects of substances like tobacco.

Function of Oral Mucosa

Protects from pathogens, provides sensory functions, aids in absorption and secretion.

Histological Features of Oral Mucosa

Reflects clinical appearance, showing differences between healthy and diseased states.