Intro to HENT Flashcards
What is the attenuation reflex?
muscles “tense up” middle ear bones to make them less mobile under loud sound stress
build up of ___________ occurs in Meniere disease with what effects/symptoms?
Build up of endolymphatic pressure occurs, with hearing loss, vertigo, tinnitus
pitch reception vs. perception
Reception - different frequencies received by different parts of the basilar membrane
-Perception is how the brain processes the signals from the cochlea
why is rhino sinusitis very common
sinuses, nasopharynx, middle ear are all contiguous and have the same infectious organisms
How are sinuses normally maintained sterile?
mucociliary clearance
Infection is almost always secondary to…
impaired mucociliary clearance (inflammation, viral infections, allergies, abnormal anatomy)
xerostomia
dry mouth, feature of autoimmune disorder Sjogren symdrome
mucocele
most common lesion of the salivary glands
-results from blockage or rupture of a salivary gland duct