What Was That?
Outer flap of the ear; acts like a sound funnel, directing it to the auditory canal
Pinna
Divided into three sections (outer, middle, inner); functions are hearing and balance/equilibrium; sensory cells located in the inner section
Ear
Movement of fluid in these channels helps one identify body movement; dynamic equilibrium
Semicircular Canals
Treatment; amplifies sound and transmits to eardrum
Hearing Aid
DAILY DOUBLE
1 answer
Equilibrium maintained by vestibule
1 answer
Equilibrium maintained by semicircular canals
Static Equilibrium; Dynamic Equilibrium
Channel carrying sound waves to the eardrum; specialized sweat glands produce earwax to trap invading particles
Auditory Canal
Contains rows of hair cells; identify and respond to sound waves of different frequencies and intensities
Cochlea
Connected to middle ear by oval window; contains two small sacs which determine head position; static equilibrium
Vestibule
Ringing in ear; malfunction of cochlea, transmitted to brain; hair cells are damaged, bent or destroyed
Tinnitus
Pocket within each semicircular canal which contains hair that moves with the cupula when acted on by gravity or a centrifugal force
Ampulla
DAILY DOUBLE
2 answers
Beginning of the middle ear; vibrates and passes along energy to ossicles
Tympanic Membrane/Eardrum
Contain cilia; respond to mechanical stimuli; movement of cilia causes nerve cell to generate an impulse
Hair Cells
DAILY DOUBLE
2 answers
Two small sacs within the vestibule; determine head position
Utricle; Saccule
Treatment; converts sound to electrical impulses that are sent to auditory nerve
Cochlear Implant
Gel-like material within the ampulla of each semicircular canal
Cupula
DAILY TRIPLE
6 answers (2 names for each bone)
Ossicles; amplify/pass sound waves from eardrum to the oval window
Malleus/Hammer; Incus/Anvil; Stapes/Stirrup
Smaller than eardrum and amplifies sound; receives sound waves from stapes
Oval Window
Calcium carbonate granules; gravity pulls them and the gelatinous material within the saccule and utricle causing hairs to bend, which stimulate sensory receptors to send message to the brain
Otoliths
Caused by wax build-up, middle ear infection, punctured eardrum
Conductive Hearing Loss
Rotating fluid bends the cilia in the cupula and the hair cells send a message through the vestibular nerve to the brain
Rotational Equilibrium
Air filled tube that equalizes pressure between internal and external ear; drains excessive fluid to nasal cavity; infection can cause discomfort, difficulty balancing, and temporary deafness
Eustachian Tube
Makes up for the pressure difference within the cochlea during sound transmission; moves outward when oval window moves inward
Round Window
Theme: Cochlea
Hearing apparatus within the cochlea; composed of 2 rows of hair cells anchored to the basilar membrane
Organ of Corti
Auditory nerve severed or cochlear hair cells damaged; caused by aging, exposure to loud noises, head trauma, genetic conditions, or viruses
Sensorineural Hearing Loss
Hair cells of the utricle and saccule bend in response to head position
Gravitional Equilibrium