Histology Flashcards
referred to as adenoids when swollen
pharyngeal tonsil
3 types of tonsils
pharyngeal
palatine
lingual
Function of brush cells
sensation not olfaction
-have large, blunt microvilli
What are the Bowman’s glands?
olfactory glands that secrete serous fluid that traps and serves as solvent for odorants
What type of cell serves as a progenitor (stem cell) of other mature cell types?
basal cell
What cells synthesize and secrete mucus?
goblet cells
What is another name for supporting cells?
sustentacular cells
What is the function of supporting cells?
like neuroglia: metabolic and physical support of olfactory receptor cells. These are the most numerous cells in olfactory epithelium
type of epithelium of the lumen of the larynx
stratified squamous epithelium
epithelium of the epiglottis
stratified squamous epithelium
epithelium of the larynx (except lumen & epiglottis)
ciliated pseudostratified columnar epithelium
What is another name for the false vocal chords?
ventricular folds
Source of otitis?
infection through pharyngeal tonsil
In children, the auditory tube is short & horizontal, therefore infection more likely.
unique features of epiglottis surfaces
Lingual surface is multi-layered, thicker and stratified squamous epithelium.
Pharyngeal surface is pseudostratified ciliated epithelium.
Internal epiglottis -> elastic tissue
locations of pseudostratified epithelium
lining of trachea, primary bronchi, nasal cavity and excretory ducts of parotid gland
