Chapter 8 Special Senses: Ear and Eye Flashcards
general senses found in skin
pain
touch
pressure
temp
proprioception
special senses
gustation
olfaction
hearing
equilibrium
vision
equilibrium
balance
gustation
taste
hearing
sound
olfaction
smell
proprioception
posture, movement, changes in equilibrium
tactile
touch
vision
light t o sight
-esthesia
sensation
-algesia
pai n
-osmia
sense of smell
-geusia
taste
pinna
projection of ear, also called auricle (where you get piercings)
auricle
also called pinna, projection of ear
external auditory canal
where earwax collects, called meatus too
meatus
external auditory canal
tympanic membrane
also called eardrum, before malleus, deep to meatus
cerumen
earwax
- protection
- infection prevention
ossicles
small bones
- malleus
- incus
- stapes
auditory tube
eustachian tube
- connects middle ear with nasopharynx
- equalizes pressure between outer ear and middle ear
how is the inner ear described?
labyrinth
- complex shape!!!
cochlea
snail shell
spiral organ
part of cochlea that allows for hearing
also called organ of Corti
organ of corti
also called spiral organ
cells respond to sound
vestibular apparatus
sense of equilibrium
- semicircular canals
- vestibule
vestibulocochlear nerve
nerve that transmits ear impulses to brain (VII)
incus
deepest ossicle
malleus
middle ossicle
stapes
most superficial ossicle
audi/o
hearing
acous
sound, hearing
acus
sound, hearing
cus
sound, hearing
ot/o
ear
myring/o
tympanic membrane
tympan/o
tympanic cavity (middle ear), tympanic membrane
salping/o
tube, auditory tube
staped/o, stapedi/o
stapes
labyrnth/o
labyrinth (inner ear)
vestibul/o
vestibule, vestibular apparatus
cochle/o
cochlea (of inner ear)
sensorineural hearing loss
damage to
- inner ear
- VII nerve
- central auditory pathways
(heredity, toxins, loud noises, aging)
inability to hear frequencies to deafness
COCHLEAR IMPLANT
conductive hearing loss
blockage in sound transmission to inner ear
(infection, obstruction, fixation of ossicles)
often easily cured
otitis media
infection that results in fluid in middle ear
(allergy, enlarged adenoids, injury, congenital, infection)
myringotomy - tube in tympanic membrane to drain fluid