Histo of Taste and Olfaction Flashcards
What type of epithelium lines the nasal vestibule?
Keratinized stratified squamous epithelium
What are the hallmarks of olfactory mucosa?
Dramatically thicker than respiratory epithelium (still pseudostratified ciliated columnar)
Lacks goblet cells
What is the function of the olfactory glands?
Serous secretions that dissolve odorant molecules
Make up for lack of mucus from goblet cells
What cells have specialized, nonmotile cilia with odorant receptors?
Olfactory receptor cells
What layer of mucosa in the oral cavity contains the neurovasculature?
Papillary layer of lamina propria
If the submucosal layer is present in the oral cavity, what does it contain?
Loose CT, adipose tissue, salivary glands
What epithelium makes up the masticatory mucosa?
Keratinized and/or parakeratinized stratified squamous epithelium
What kind of mucosa is found on the hard palate, gingiva, and dorsal surface of the tongue?
Masticatory mucosa
What is the purpose of rete ridges and papillae in masticatory mucosa?
Allows mucosa to stay firmly adhered to connective tissue beneath it
Where is lining mucosa found?
Lips, cheeks, alveolar mucosal surface, floor of mouth, inferior surfaces of the tongue, soft palate
What type of oral mucosa would have a distinct submucosa?
Lining mucosa
What type of epithelium makes up lining mucosa?
Nonkeratinized stratified squamous, may be parakeratinized in some sections
What are the 3 layers of the epithelium of lining mucosa?
- Stratum basale
- Stratum spinosum
- Stratum superficiale
What sense is the oral specialized mucosa associated with?
Taste
Where is the oral specialized mucosa located?
Dorsal surface of the tongue