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11 Jul 2009, 5:51 PM
| #1 (permalink) |
| Impossible?  HSC: 2009 Gender: Male Location: Western Sydney
Join Date: Feb 2008
Posts: 669
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Yesterday, 5:45 PM  | Bio Question? You can hide this advertisement by registering. Need assistance with this question  Describe the structure and function of a hearing aid and a cochlear implant.
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11 Jul 2009, 7:01 PM
| #3 (permalink) | |
| Senior Member  HSC: 2009 Gender: Female Location: Sydney
Join Date: Sep 2008
Posts: 304
Last Activity:
17 Nov 2009, 2:10 PM | Re: Bio Question? do you use the McGRAW-HILL bio comms textbook? if you do go to pages 74 to 77. the table should give you enough information to answer the question. if you dont have that book, log onto the bio study group - i'll help u there
__________________ Grad 09' --- 2U Maths - Biology - IPT - Cont. Chinese - SoR1 - Adv Eng --- I live here: http://boards.fansub.tv/ And i rant here: http://blog.fansub.tv/samthebear/ --- Quote:
Last edited by samthebear; 11 Jul 2009 at 7:03 PM. | |
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11 Jul 2009, 7:33 PM
| #4 (permalink) |
| Impossible? HSC: 2009 Gender: Male Location: Western Sydney
Join Date: Feb 2008
Posts: 669
Last Activity:
Yesterday, 5:45 PM | Re: Bio Question? nw, compiled an answer after i borrowed some books from the library, couldn't find much relevant info on the net for it though.
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15 Jul 2009, 11:40 AM
| #5 (permalink) |
| New Member  HSC: 2008 Gender: Female Location: Sydney
Join Date: Oct 2008
Posts: 12
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Yesterday, 10:56 PM | Re: Bio Question? If I remember bio correctly, both hearing aids and cochlear implants transfer sound energy to elevtrical energy. Hearing aid have the purpose of amplifying sound energy and are external devices on the ear, used mostly for people with outer or middle ear damage to hear better. and cochlear implants require surgery and are an internal device (obviously) for people with inner ear damage, have damage to auditory nerve and/or who are profoundly deaf to actually restore or provide hearing for them and not just amplify sound. They have to learn to interpret sound after surgery. Thats all I got..
__________________ HSC 08 - Gen maths 89, Adv Eng 88, Bio 79, German 96, Business 85 2008 UAI: 91.05 |
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19 Oct 2009, 1:50 PM
| #6 (permalink) |
| Assistant Member  HSC: N/A Gender: Undisclosed
Join Date: Aug 2009
Posts: 67
Last Activity:
Today, 12:22 AM | Re: Bio Question? They BOTH are artificial hearing devices, battery operated. Hearing implants; -one component; microphone, amp, earphone. -amplifies vibrations to physically stimulate nerves of cochlea. -uses normal auditory pathway. -detects fewer sounds than cochlear implant -sits on ear canal -conditioned to substitute for middle ear damage (ruptured tympanic membrane, damaged ossicles) -do not require surgery -almost invisible -relatively inexpensive -no sideeffects -no programming needed Cochlea Implant; -3 components (implanted receiver package, speech processor, headset) -electrically stimulates nerves of the cochlea. -able to detect more sounds. -receiver and electron array in inner ear, head set and speech processor worn externally. -conditioned for profoundly deaf people; when hair cells in the cochlea are damaged. -requires surgery. -visible -post-operative side effects -expensive w/ ongoing costs -needs programming/ adjusting. |
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