Special Senses Flashcards
white of eyes
sclera
lump over lens
cornea
big pupil
madriasis
ciliary body controlled by
parasympathetic NS
Imp for exam
slide 11–what I would see if there was a lesion at some point in the optic pathway–(kids with very dominant eye prescribed one smoked glasses lens to develop non-dominant eye cortex)
temporal visual field strikes
nasal retina
nasal visual field strikes
temporal retina
pituitary adenoma/ enlargement pressess on
optic chiasm–bitemporal hemianopia–know first 3 on slide 11
imp for visual field loss–due to lesion
questions are concerning VISUAL FIELD loss–not retinal region loss
conductive vs
sensoryneural hearing loss
arthritis of ausicles, cerumen impaction, hard/ perforated TM, fluid buildup (otitis media if infected–serus otitis if fluid but no infection
conductive hearing loss
if bone conduction is better than air conduction (w/ tuning fork)
conductive hearing loss because hair cells intact
when confronted with “dizzy” patient
must find out pt’s idea of dizzy–if “room is spinning” it’s vestiular
vertigo etiologies
labarinthitis, vestibulitis, spec. Menair’s disease
vertical nistagmus
usually due to brain stem tumor–much worse than horizontal gaze nistagmus
squirt warm or cold water into ear to elicit nistagmus
choloric test
sense organ of semi-circular canals
cupula in ampulla
sense of smell in
posterior pharanx–olfactory bulb sends fibers through cribriform plate (very thin)
olfactory sensors are
actual neuron–only place in the body
sense of taste
gustation–papillae
buds on side of tongue
Foliate papillae
buds at back of tongue
vallate papillae
buds on anterior superior tongue
fungiform papillae
posterior tongue taste innervation
CN IX glossopharyngeal
