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25 Cards in this Set
- Front
- Back
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What is pitch?
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A perceptual dimension of sound; corresponds to the fundamental frequency.
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What is hertz (Hz)?
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Cycles per second.
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What is loudness?
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A perceptual dimension of sound; corresponds to intensity.
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What is timbre?
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A perceptual dimension of sound; corresponds to complexity.
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What is the tympanic membrane?
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The eardrum.
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What is the ossicle?
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One of the three bones of the middle ear.
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What is the malleus?
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The "hammer"; the first of the three ossicles.
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What is the incus?
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The "anvil"' the second of the three ossicles.
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What are the stapes?
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The "stirrup"; the last of the three ossicles.
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What is the cochlea?
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The snail-shaped structure of the inner ear that contains the auditory transducing mechanism.
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What is the oval window?
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An opening in the bone surrounding the cochlea that reveals a membrane, against which the baseplate of the stapes presses, transmitting sound vibrations into the fluid within the cochlea.
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What is the organ of Corti?
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The sensory organ on the basilar membrane that contains the auditory hair cells.
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What is a hair cell?
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The receptive cell of the auditory apparatus.
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What is a Deiter's cell?
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A supporting cell found in the organ of Corti; sustains the auditory hair cells.
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What is the basilar membrane?
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A membrane in the cochlea of the inner ear; contains the organ of Corti.
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What is the tectorial membrane?
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A membrane located above the basilar membrane; serves as a shelf against which the cilia of the auditory hair cells move.
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What is the round window?
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An opening in the bone surrounding the cochlea of the inner ear that permits vibrations to be transmitted, via the oval window, into the fluid in the cochlea.
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What is the cilium?
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A hairlike appendage of a cell involved in movement or in transducing sensory information; found on the receptors in the auditory and vestibular system.
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What is a tip link?
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Elastic filaments that attach the tip of one cilium to the side of the adjacent cilium.
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What is an insertional plaque?
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The point of attachment of a tip link to a cilium.
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What is the cochlear nerve?
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The branch of the auditory nerve that transmits auditory information from the cochlea to the brain.
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What is the olivocochlear bundle?
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A bundle of efferent axons that travel from the olivary complex of the medulla to the auditory hair cells on the cochlea.
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What is the cochlear nucleus?
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One of a group of nuclei in the medulla that receive auditory information from the cochlea.
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What is the superior olivary complex?
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A group of nuclei in the medulla; involved with auditory functions, including localization of the source of sounds.
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What is the lateral lemniscus?
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A band of fibers running rostrally through the medulla and pons; carries fibers of the auditory system.
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