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SPAA 343 Week 4 Notes

by: Janell Barker

SPAA 343 Week 4 Notes SPAA 343

Janell Barker
GPA 3.8

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About this Document

This covers the notes from 2/1 and 2/5. We had an exam on the 3rd. I have the study guide posted as well!
Introduction to Audiology
Mr. Gregory Newman
Class Notes
25 ?




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Popular in Linguistics and Speech Pathology

This 2 page Class Notes was uploaded by Janell Barker on Friday February 5, 2016. The Class Notes belongs to SPAA 343 at Ball State University taught by Mr. Gregory Newman in Fall 2016. Since its upload, it has received 19 views. For similar materials see Introduction to Audiology in Linguistics and Speech Pathology at Ball State University.


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Date Created: 02/05/16
EXAM 1 WEDNESDAY FEB. 3 RD 2/5/2016 Chemotherapy kills cells; unfortunately, we kill good cells while trying to kill bad cells 2/1/16 Auditory Disorders Antibiotics don’t work on viruses;  We can have disorders in any part of overprescribing antibiotics has created another the ear problem Syndrome – genetic disorder that is distinguished due to common characteristics (i.e. Down syndrome) Congenital vs. Acquired:  there are about 400 known syndromes - congenital implies HL is present at that cause hearing loss birth; can include hereditary HL or HL due to other factors present middle ear includes structures: middle ear space epitympanic recess, ossicles, middle ear either in utero or time of birth - acquired HL appears AFTER birth, at muscles any time in one’s life; result of inner ear includes structures: vestibular organs disease, environmental exposure, semi-circular canals, ampullae, utricle, and or an injury saccule) and cochlea (basilar membrane, organ Syndromic vs. Non syndromic HL: of corti, hair cells) Syndrome – set of symptoms that appear Associated terminology: together to indicate a specific pathological  environmental condition; underlying cause of syndromes may  genetic or may not genetic  multifactorial – genetic, and also Syndromic refers to an individual that has other worked at a factory and got HL that way related symptoms besides the HL or that HL is  congenital associated with other clinical abnormalitities.  acquired  syndromic Over 400 syndromes are known to include  nonsyndromic hearing impairment; genetic losses are linked, typically, to Nonsyndromic refers to individual has no other symptoms related to HL. Non-syndromic chromosomal abnormalities. Approx. 50% hearing loss is genetic hearing impairment accounts for vast majority of genetic HL, approx. 70%  environmental causes include certain medications (or recreational drugs), specific infections before or after birth, Disorders of the outer ear: and exposure to loud noise over an extended period of time  when portions of the outer ear are abnormal or diseased, hearing may or may not be impaired, depending on which structures are involved and the nature of the involvement  outer ear disorders are important because abnormalities in one part of the body, especially congenital abnormalities, are often related to abnormalities in the other parts of the body (or ear) Atresia of external auditory canal (EAC) – cartilaginous, bony portion, or entirety of ear canal is never formed Microtia – abnormally small pinna Stenosis – narrowing of EAC External otitis – infection occurring in skin of external auditory canal also referred to as “swimmer’s ear” Growths of EAC – tumors, both benign and malignant, growing within the EAC Perforation of tympanic membrane – rupture or “hole” in the tympanic membrane caused by external trauma or pressure build-up within middle ear Central perforation – the hole is not engaging the ear canal walls. Marginal perforation – one that is engaging the ear canal wall, so we have lost a connection point of the eardrum to the ear canal wall Tympanosclerosis – thickening or excessive scarring of the tympanic membrane Exostosis – caused by swimming in cold water. Bony growth in ear canal


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