- Study guides, Class notes & Summaries

endolymph Ans: cochlear fluid w high K, low Na tectorial membrane Ans: the stereocilia are attached to this Heschl's gyrus Ans: primary auditory cortex reticular lamina Ans: upper surface of the organ of Corti, which is composed of a tight mosaic of the tops of all the cells stria vascularis Ans: highly vascularized system of cells that maintains the ionic charge of the endolymph internal auditory canal Ans: opening in the petrous portion of the temporal bone where both the 8th and...

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9 pages

Written in 2023/2024

Grade A+

Axpert

Transduction Ans: The change in sound energy from one form to another Impedance mismatch in the ear Ans: 30 dB SPL loss at the oval window Function of the middle ear Ans: Equalizes pressure Resting potential of the scala media Ans: +80 mv Transduction stages (earliest-latest) Ans: 1. Condensation/rarefaction of air molecules 2. In and out movement of the oval and round windows 3. Back and forth movements of stereocilia 4. Depolarization and hyperpolarization of hair cells 5. Phas...

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25 pages

Written in 2023/2024

Grade A+

Axpert

Psychoacoustics Ans: -the study of psychological response to acoustical stimulation -how you process sound and speech and respond to it Threshold Ans: -a certain intensity above which the organism always responds to the stimulus and below which it never does -LOWER THRESHOLDS ARE BETTER!!! -not a uniform agreement across alls studies -Threshold varies from moment to moment because of internal and external factors -Thresholds can go down to -10 dB Calibration Ans: - does the number on...

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42 pages

Written in 2023/2024

Grade A+

Axpert

what are the two main functions of the outer ear (pinna)? Ans: sound localization and middle ear protection Where is the endolymph found and what charge does it have? Ans: in the scala media; positive charge Where is the scala vestibuli located? Ans: in the upper portion where does a low frequency sound start on the basilar membrane? Ans: low frequency sounds start at the apex where does a high frequency sound start on the basilar membrane? Ans: high frequency sounds start at the base ...

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25 pages

Written in 2023/2024

Grade A+

Axpert

Pinna (2 functions) Ans: outer ear -sound transmission and localization -middle ear protection External auditory meatus Ans: protects against things getting in the ear What is the division of the ear canal? Ans: 1/3 cartilaginous, 2/3 bony What is the narrowing of the ear canal called? Where is it near? Ans: isthmus, near tympanic membrane cerumen Ans: waxy substance secreted by ear canal's hair follicles interaural Ans: between ear binaural localization cues Ans: created by inte...

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22 pages

Written in 2023/2024

Grade A+

Axpert

To vibrate, a source must have these 2 properties Ans: Mass and elasticity A source of sound must be able to __________ Ans: Vibrate Elasticity Ans: The ability to come back to rest To transmit sound, a medium must be capable of _______________ Ans: Being set into vibration The medium must have what same two properties as the source of sound? Ans: Mass and elasticity T or F? Speed of sound will change based on temperature Ans: True Air particles that we are setting into vibration a...

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21 pages

Written in 2023/2024

Grade A+

Axpert

Pinna (Auricle) Ans: outer ear, primarily made of cartilage, collects auditory stimuli and funnels it into ear canal Concha Ans: outer ear, deep center portion external auditory meatus Ans: outer ear, opening to the external auditory canal external auditory canal Ans: outer ear, 2-3cm in length, first 1/3 of the canal is cartilaginous with glands and hair follicles, final 2/3 is bony Tympanic Membrane Ans: middle ear, most lateral, cone shaped, pearl white in color (unless you have ...

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21 pages

Written in 2023/2024

Grade A+

Axpert

7th cranial nerve Ans: facial nerve 8th cranial nerve Ans: see above diagram^, sensorineural part of inner ear afferent neuron Ans: nerve fibers that carry impulses from the sensory organs (peripheral) toward the brain (central); approximately 31,000 afferent auditory neurons come from each cochlea Ampulla Ans: bulbous region near the anterior end (near the vestibule) of each semicircular canal; houses the crista ampullaris Anotia Ans: complete absence of auricle Anterior Ans: fro...

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29 pages

Written in 2023/2024

Grade A+

Axpert

5 general divisions of the ear Ans: outer middle inner 8th cranial nerve Peripheral sensory organs Ans: semicircular canals saccute utricle what are the otolith organs Ans: utricle saccule Temporal bone Ans: part of the skull where ear is located auricle Ans: the outside part of the ear that can be seen and is all made of cartilage located lateral to temporal bone central auditory system Ans: neural pathways in brainstem and cortical areas peripheral auditory system Ans: ...

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19 pages

Written in 2023/2024

Grade A+

Axpert

SLHS 305 BUNDLED EXAMS WITH SOLUTION

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8 items

Newsolution

SLHS 305 Midterm 1 With Solution...

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14 pages

Written in 2023/2024

Grade A+

Newsolution

SLHS 305 Exam 1 With Complete Solution...

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20 pages

Written in 2023/2024

Grade A+

Newsolution

SLHS 305 PRACTICE TEST WITH SOLUTION...

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15 pages

Written in 2023/2024

Grade A+

Newsolution

SLHS 305 Final Exam With Complete Solution...

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14 pages

Written in 2023/2024

Grade A+

Newsolution

SLHS 305 Study Guide With Complete Solution...

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14 pages

Written in 2023/2024

Grade A+

Newsolution

SLHS 305 Exam 2 With Complete Solution...

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19 pages

Written in 2023/2024

Grade A+

Newsolution

SLHS 305 Exam 3 With Complete Solution...

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19 pages

Written in 2023/2024

Grade A+

Newsolution

SLHS 305 Test 1 With Complete Solution...

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17 pages

Written in 2023/2024

Grade A+

Newsolution