Oral Histology

Front 1

The oral cavity is lined with?

Back 1

stratified stratified squamos epithelium that varies in its chatacteristics depending on location and function.

Front 2

Oral cavity lined with?

Back 2

Oral mucosa

Front 3

Lining mucosa is found?

Back 3

under the tongue, the floor of the mouth, the cheeks, the inner lip and the soft palate(often called mucus membrane)

Front 4

Masticatory mucosa is found?

Back 4

Is found in the hard palate and gingiva.

Front 5

Specialized Mucosa found?

Back 5

found on the upeer surface of the tongue.

Front 6

The general structure of the oral mucosa tissues consists of?

Back 6

epithelial layer, the basal lamina, a layer of ct called the labina propria and a submucosal layer which may not be present in some mucosa.

Front 7

3 Major regions of epithelium:

Back 7

stratum basale (basal layer) where mitosis occurs, the stratum intermedium(prickle cell layer, spinosum) where cells are moving toward the lumenal surface and the stratum superficiale(outer layer), may or may not be keratinized depending on mucosal type and function.

Front 8

non-epithelial cells include:

Back 8

melanocytes (pigmentation), Langerhans cells(immune cells involved in antigen presentation), Merkel cells (touch receptors associated with nerve terminals) and inflammatory cells (lymphocytes, monocytes, and nuetrophils).

Front 9

basal lamina regions

Back 9

lamina lucida(below the basal cell layer) and lamina densa (next to lamina propia)

Front 10

Lamina propria is subdivided into two layers:

Back 10

Upper papillary layer and lower-reticular layer which contains numerous finbers.

Front 11

Rete Ridges (Rete Peg's)?

Back 11

extensions of epithelial tissue into lamina propria layer.

Front 12

Papillae

Back 12

extensions of lamina proria extending into the epithelial tissue. The papillae and the rete ridges interdigitate.

Front 13

where is submucosa present in oral cavity?

Back 13

cheeks and soft palate.

Front 14

Hemidesmosome: Disc portion sits? tonofibrils,

Back 14

within the plasma membrane of the epithelium cels.extend into the lamina propria layer to anchor the collagen finbers of the layer.

Front 15

Holds epithelial layer to the lamina propria by?

Back 15

rete ridges, hemidesmosomes, and c.t. papillae.