Explain How Prolonged Exposure To Loud Noise Is Likely To Cause Deafness
1) Explain how prolonged exposure to loud noise is likely to cause deafness?
Sound waves enters through your ear and travels through a narrow passage called ear canal, which then leads to your ear drums. Then the ear drums vibrate from the incoming sound waves and sends these sound vibrations to your three tiny bones called malleus, incus, and stapes. When the sound vibration hits the fluid movement in the cochlea of the inner ear. An elastic partition goes through the cochlea, which starts from the beginning of the cochlea to the end. After this, it goes into two different directions, upper part and lower part. The partition is called basilar membrane. Following that, the vibrations causes the fluid to ripple a travelling wave which forms along …show more content…
the basilar membrane. The hair cells sitting on top of the membrane goes with the ripple. Soon after this, the hair cells move in an up and down motion. Then the stereo cilia perches on top of the hair cells and the top of the hair cell opens up. When this happens, chemicals rush into the cell, creating an electrical signal. The auditory nerve collects the electrical signal and carries it out to the brain, which translates the noise. If we listen to really loud noises for a long time, the hair cells will get damaged and eventually die and these hair cells will never grow back again.
2) Compare an acoustic trauma and prolonged exposure to loud noise.
Acoustic trauma is more dangerous than prolonged exposure to loud noise and is very powerful. In acoustic trauma, you can lose your hearing very quickly, because single exposure or relatively few exposures can damage your hair cells. This is because the sound is very intense and the loudness of the decibel is above 140. An example of this kind of noise is an explosion. The possible outcomes of listening to these intense noises can damage your ear drum, bones of the middle ear and the hair cells. The main symptom of acoustic trauma is hearing loss. Acoustic trauma can’t be cured, but can be treated with technologic assistance. On the other hand, prolonged exposure to loud noise is slower to damage and it will take time for it to affect the hair cells. You can also stop yourself from getting damage, for example, by lowering the sound system or by moving away from the noise. But with acoustic trauma there are two to five quick sound waves that could damage your hair cells and bones in the middle of the ear.
3) What is Temporary Threshold Shifts (TTS)?
If you suffer from TTS frequently do you think that the recovery time would increase or decrease?
Temporary Threshold Shifts (TTS) are temporary changes in the hearing level resulting from sound levels higher than 70-75 decibels (dB). It may occur suddenly after exposure to loud level of sound. Temporary threshold shifts results in temporary hearing loss. An example of this is listening to music in high volume with their earphones or headphones which has decibels over 70-80.
The recovery time would definitely decrease, because you’re not giving your ears enough time to rest and it would take its original exposure time to completely recover.
4) Explains the concerns that the doctors have about young people listening to music on portable devices?
The doctors say, “Young people listening to high volume noise over 85 decibels for more than an hour, without giving their ears any rest could damage their hair cells.” Doctors also say, “If these young people listen over 89 decibels they could possibly lose their hearing within 5 years, but the biggest concern is that people might lose their ability to categorise consonants under
speech.”
5) ‘Portable music devices should have a control that limits the volume at which they can be played.’ Prepare an argument for or against this statement. http://www.healthline.com/health/acoustic-trauma#Treatments6 This website was okay and was used in question 3. http://www.nidcd.nih.gov/health/hearing/pages/noise.aspx#3 This website was very useful and was used in question 1. http://www.abc.net.au/science/articles/2008/10/14/2390348.htm This website was very useful and was used in question 4 and 5. I will stand for this argument because, sometimes people just don’t know how damaging it could really be. For instance did you know that an iPods maximum noise is 10 times more than what is recommended? Since iPod has been introduced in 2001, hearing loss has been an obvious concern among the young people. Also, for regular iPod users, loud music might not be noticed immediately which could lead to severe hearing damage.
Sound waves enters through your ear and travels through a narrow passage called ear canal, which then leads to your ear drums. Then the ear drums vibrate from the incoming sound waves and sends these sound vibrations to your three tiny bones called malleus, incus, and stapes. When the sound vibration hits the fluid movement in the cochlea of the inner ear. An elastic partition goes through the cochlea, which starts from the beginning of the cochlea to the end. After this, it goes into two different directions, upper part and lower part. The partition is called basilar membrane. Following that, the vibrations causes the fluid to ripple a travelling wave which forms along …show more content…
the basilar membrane. The hair cells sitting on top of the membrane goes with the ripple. Soon after this, the hair cells move in an up and down motion. Then the stereo cilia perches on top of the hair cells and the top of the hair cell opens up. When this happens, chemicals rush into the cell, creating an electrical signal. The auditory nerve collects the electrical signal and carries it out to the brain, which translates the noise. If we listen to really loud noises for a long time, the hair cells will get damaged and eventually die and these hair cells will never grow back again.
2) Compare an acoustic trauma and prolonged exposure to loud noise.
Acoustic trauma is more dangerous than prolonged exposure to loud noise and is very powerful. In acoustic trauma, you can lose your hearing very quickly, because single exposure or relatively few exposures can damage your hair cells. This is because the sound is very intense and the loudness of the decibel is above 140. An example of this kind of noise is an explosion. The possible outcomes of listening to these intense noises can damage your ear drum, bones of the middle ear and the hair cells. The main symptom of acoustic trauma is hearing loss. Acoustic trauma can’t be cured, but can be treated with technologic assistance. On the other hand, prolonged exposure to loud noise is slower to damage and it will take time for it to affect the hair cells. You can also stop yourself from getting damage, for example, by lowering the sound system or by moving away from the noise. But with acoustic trauma there are two to five quick sound waves that could damage your hair cells and bones in the middle of the ear.
3) What is Temporary Threshold Shifts (TTS)?
If you suffer from TTS frequently do you think that the recovery time would increase or decrease?
Temporary Threshold Shifts (TTS) are temporary changes in the hearing level resulting from sound levels higher than 70-75 decibels (dB). It may occur suddenly after exposure to loud level of sound. Temporary threshold shifts results in temporary hearing loss. An example of this is listening to music in high volume with their earphones or headphones which has decibels over 70-80.
The recovery time would definitely decrease, because you’re not giving your ears enough time to rest and it would take its original exposure time to completely recover.
4) Explains the concerns that the doctors have about young people listening to music on portable devices?
The doctors say, “Young people listening to high volume noise over 85 decibels for more than an hour, without giving their ears any rest could damage their hair cells.” Doctors also say, “If these young people listen over 89 decibels they could possibly lose their hearing within 5 years, but the biggest concern is that people might lose their ability to categorise consonants under
speech.”
5) ‘Portable music devices should have a control that limits the volume at which they can be played.’ Prepare an argument for or against this statement. http://www.healthline.com/health/acoustic-trauma#Treatments6 This website was okay and was used in question 3. http://www.nidcd.nih.gov/health/hearing/pages/noise.aspx#3 This website was very useful and was used in question 1. http://www.abc.net.au/science/articles/2008/10/14/2390348.htm This website was very useful and was used in question 4 and 5. I will stand for this argument because, sometimes people just don’t know how damaging it could really be. For instance did you know that an iPods maximum noise is 10 times more than what is recommended? Since iPod has been introduced in 2001, hearing loss has been an obvious concern among the young people. Also, for regular iPod users, loud music might not be noticed immediately which could lead to severe hearing damage.