13 Special Senses Flashcards
auditory ossicles
malleus, incus, stapes
five major tastes
salt, sweet, sour, bitter, and umami (savory)
papillae
small projections on the tongue, many contain taste buds
binocular vision
vision using two eyes for depth perception
optic nerve
carries neural impulses from the eye to the brain
olfactory epithelium
thin tissue layer in the nasal cavity with hair-like cilia
equilibrium
state of balance sensed in the inner ear
sclera
white of the eye
cataracts
cloudy lens affecting vision, common in older people
otitis media
middle ear infection, common in children
tinnitus
ringing or buzzing in the ears
tears drain
into the nasolacrimal duct and then into the nasal cavity
retina
light sensitive layer of the eye, contains rods and cones
Meniere’s disease
inner ear disorder causing dizziness, tinnitus, and ear pain
tympanic membrane
eardrum
cones
detect bright light and allow for color vision
rods
detect dim light and black, white, and gray
farsightedness
image focused beyond the retina
nearsightedness
point of focus does not reach the retina
presbyopia
inability to focus close up due to aging
astigmatism
focus problems caused by cornea shape
macular degeneration
disease that destroys central vision, age-related
retinal detachment
retina pulled away from normal position, can see floaters
color blindness
genetic condition impairing color perception, more common in men
