keratinized mucosa

Question 1

what 4 layers form the oral epithelium in keratinized oral mucosa

Answer 1

The stratum basale
Stratum spinosum
Stratum granulosum
Stratum corneum

Question 2

what is papillae

Answer 2

projection formed by junction between epithelium and connective tissue

Question 3

what are the hard palate, dorsum of tongue and gingiva covered in

Answer 3

masticatory, keratinised stratified squamous epithelium

Question 4

where do diseases oral tissues usually originate

Answer 4

in epithelium
e.g. malignancy occurs due to genetic defects in the basal keratinocytes leading to uncontrolled cell division

Question 5

how does auto inflammatory diseases such as oral lichen planus occur

Answer 5

as a result of immune cell mediated damage of stratum basale

Question 6

give examples of fungi that can infect upper epithelial layers and result

Answer 6

candida albicans causes oral candidiasis or denture stomatitis

Question 7

what is the permeability or oral epithelium dependant on

Answer 7

thickness, lipid content in granular layer and degree of keratinisation