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25 Cards in this Set

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