- 1 thing you already knew
- 2 new things that you've learned
- 1 question that still remains unanswered
2. Investigate your question until you are able to compose a sufficient answer.
3. Post your thoughts (everything from 1 and 2) as a comment.
1. Read the article on noise-induced hearing loss (click HERE). While reading, take note of:
2. Investigate your question until you are able to compose a sufficient answer. 3. Post your thoughts (everything from 1 and 2) as a comment.
9 Comments
Jenna Harris
4/27/2015 03:55:36 am
I knew how sound traveled through the ear because of psychology. I learned that Alfredo will be deaf because of how loud he listens to his music. I also learned that human hair doesn't grow back, and the sound that we emit into our ear permanently damages or kills our little ear hairs. I would like to know why human hair does not grow back but bird and amphibian hair does.
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Jimmy Lasso
4/27/2015 03:57:37 am
I already knew that NIHL is caused by noises of extreme decibels, but I did not know that 16 percent of teens between 12 and 19 have experienced it. I also didn't know that our ear was specially shaped to help us locate where sounds are coming from. This leads me to my question. Because wrestlers have weirdly shaped ears from being slammed so much, does this take away from their ability to locate where sound is coming from as well as people who don't have misshapen ears?
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Courtney Carter
4/27/2015 04:06:41 am
I already new about the hairs in your ear were used to create the message that gets sent to your brain but i didn't know that they wouldn't grow back once they were damaged. The one thing I never understood was how cochlear implants actually worked different then hearing aids but after researching it I understood that hearing aids actually intensify the sound and so the the ear will do it's normal function however cochlear implants just bypasses the damaged part of the ear and stimulates the nerves to send the message to your brain. So one helps the ear hear the sounds while the other one doesn't bothered with the damaged ear and just creates the actual nerve signal.
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Hayden
4/27/2015 04:08:21 am
i already knew that you can loose hearing due to being around loud noises,but i didn't know that the shapes and bends in your ear help determine what direction the sound or noise is coming from and i also didn't know that unlike bird and amphibian hair cells, human hair cells don't grow back, they are gone for good. And learning this fact, lead me to my question, why don't human hair cells grow back unlike bird and amphibian hair cells.
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Angelica Mireles
4/27/2015 04:08:46 am
I already knew that we can damage our hearing at any age in life because of what we do to our ears. I learned that my dad can become deaf if he doesn't wear ear plugs when he works with loud machinery. I was surprised to of read that the little hairs that we have in our ears don't grow back but to amphibians it does. I found that very weird. I also learned that in 2010 15 percent of Americans between the ages 20-69 that have had hearing loss because of the exposure of their ears. Now my question is why is it that us humans can't grow the little hairs in our ears back and amphibians can?
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Yvette Alaniz
4/27/2015 04:12:29 am
In the article it said that hearing loss can be temporary. I wondered if that meant that all hearing that has been lost can be restored. In my research I found that if enough damage is done to the cochlea then that is it, you've lost most of your ability to hear. Those who didn't do severe damage to their ears and cochlea, it is possible that you may have a chance to hear again like before. Over time if you take good care of your ears the damage can be repaired and your hearing could go back to normal.
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4/27/2015 04:13:13 am
I know that firearms and firecrackers are harmful to your ears, but I didn't know that there is stereocilla that helps you hear or that there is such a thing a tinnitus. My question is what about the people that are born with hearing loss, what is wrong in there ears?
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Yvette Alaniz
4/27/2015 04:17:33 am
I already knew that loud sounds can damage your ears in a great way. The two things I've learned is that Tinnitus is a constant ringing in your ear that you can have for the rest of your life and that there are microscopic hair-like things in your ears that create messages to send to your brain. In the article it said that hearing loss can be temporary. I wondered if that meant that all hearing that has been lost can be restored. In my research I found that if enough damage is done to the cochlea then that is it, you've lost most of your ability to hear. Those who didn't do severe damage to their ears and cochlea, it is possible that you may have a chance to hear again like before. Over time if you take good care of your ears the damage can be repaired and your hearing could go back to normal
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Ashley Grigsby
4/27/2015 04:18:51 am
I already knew that loud noises can cause hearing loss. I didn't know that teens around our age (12 to 19) have a bigger percentage of reported hearing loss, 16%, than adults (20 to 69), 15%. I also didn't know that our human hair cells do not grow back.
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