Test III Flashcards
(84 cards)
Perceptual dimension of sound; corresponds to fundamental frequency
Pitch
Cycles per second; measurement of pitch
Hertz
Complexity; mixture of frequencies of vibration
Timbre
Eardrum; vibrates sound
Tympanic membrane
Middle ear part set into vibration by tympanic membrane
Ossciles
“Hammer” middle ear bone
Malleus
“Anvil” of the middle ear
Incus
“Stirrup” of the middle ear
Stapes
Snail-shaped structure that contains auditory transducing mechanisms
Cochlea
Opening in bone surrounding cochlea that stapes presses against, transmitting sound vibration into fluid within cochlea
Oval Window
Sensory organ on the basilar membrane that contains auditory hair cells
organ of Corti
Auditory receptors
Hair Cells
Membrane in cochlea containing organ of Corti
Basilar Membrane
Upper membrane; shelf against which cilia of auditory hair cell move
Tectorial Membrane
Opening in bone surrounding cochlea that permits vibrations to be transmitted via oval window into fluid of cochlea
Round Window
Hairlike appendage involved in movement or in transducing sensory information; found on receptors in auditory and vestibular system
Cilia
Elastic filament that attaches to the tip of one cilium to the side of an adjacent cilium
Tip Links
Branch of auditory nerve that transmits auditory information to the brain
Cochlear nerve
Nuclei in medulla that receive auditory information
Cochlear nucleus
Band of fibers running rostrally through medulla and pons; carries fibers of auditory system
Lateral Lemniscus
Organized mapping of frequencies of sound that are represented in a particular region of the brane
Tonotopic Representation
Primary Auditory Cortex, located on a gyrus on the dorsal surface of the temporal lobe
Core region
System by which information about different frequencies is understood by different locations in the basilar membrane
Place code
Electronic device implanted in the inner ear that enables a deaf person to hear
Cochlear implant