Perception of Sound
Perception of Sound
Hearing allows us to do our everyday activities and improves our lives. It enables us to communicate, socialize, and interact in our environment. Good hearing also helps to keep us safe, warning us of dangers or alerting us to someone else’s distress. Hearing is necessary for us to be able to participate in life more fully. Our hearing provides us with a huge source of information; some of it is known to us and some we don’t even notice but when combined, this information gives us the opportunity to be aware and interact in our world. Hearing helps us live our everyday lives without limitations. Some everyday situations where are hearing is important are at work, at social occasions, learning, and for our own safety. Our ears are intricate pieces of work and there is a lot to the anatomy and physiology of how the ear. The visible or external part of the ear has more of an action like funnel, amplifying sound waves to be captured and easily directed in the ear canal. The Pinna has an interesting role allowing the canal to receive low sound frequencies by reflecting off of the Pinna. The interesting observation about the Pinna is that not only does it act as a reflector for low frequency but acts as a filter for High frequencies to not destroy the ear drum. (http://en.wikipedia.org/wiki/Pinna_(anatomy)) The Tragus is the small piece of skin that covers the ear canal. Its name came from the Greek term of a goat because of the hair that grows off of it resembled a goat’s beard. The hair off of this does have a use though as it collects sound from behind. Below the tragus is the Ear Lobe which does not have any major function for the body but it is the area that people pierce to have earrings. Sometime people have allergic reactions to metals which the ear then rejects the earrings. Another problem known by the ear lobes are when they heal they sometimes create keloids. A keloid is not a reaction but a growth of scar tissue that is created
Hearing allows us to do our everyday activities and improves our lives. It enables us to communicate, socialize, and interact in our environment. Good hearing also helps to keep us safe, warning us of dangers or alerting us to someone else’s distress. Hearing is necessary for us to be able to participate in life more fully. Our hearing provides us with a huge source of information; some of it is known to us and some we don’t even notice but when combined, this information gives us the opportunity to be aware and interact in our world. Hearing helps us live our everyday lives without limitations. Some everyday situations where are hearing is important are at work, at social occasions, learning, and for our own safety. Our ears are intricate pieces of work and there is a lot to the anatomy and physiology of how the ear. The visible or external part of the ear has more of an action like funnel, amplifying sound waves to be captured and easily directed in the ear canal. The Pinna has an interesting role allowing the canal to receive low sound frequencies by reflecting off of the Pinna. The interesting observation about the Pinna is that not only does it act as a reflector for low frequency but acts as a filter for High frequencies to not destroy the ear drum. (http://en.wikipedia.org/wiki/Pinna_(anatomy)) The Tragus is the small piece of skin that covers the ear canal. Its name came from the Greek term of a goat because of the hair that grows off of it resembled a goat’s beard. The hair off of this does have a use though as it collects sound from behind. Below the tragus is the Ear Lobe which does not have any major function for the body but it is the area that people pierce to have earrings. Sometime people have allergic reactions to metals which the ear then rejects the earrings. Another problem known by the ear lobes are when they heal they sometimes create keloids. A keloid is not a reaction but a growth of scar tissue that is created
Cited: Alliance Tinnitus and Hearing Center. (2013) [On-line] http://www.tinn.com American Speech-Language-Hearing Association Hain, Timothy. (2013) [On-line] American Hearing Research Foundation. http://american-hearing.org/disorders/menieres-disease/ Harris, Tom Levenson, M. J. (2013). Otosclerosis - a description. [On-line]. http://www.earsurgery.org/otoscl.html Medline Plus.(2013) [On-line] Neeley, M. (2013). Otosclerosis. [On-line]. http://disabilities.miningco.com/library/weekly/aa082498.htm Nordqvist, Christian Oticon (2013) [On-line] http://www.oticonusa.com/hearing.aspx Otosclerosis Tell Me About "Otosclerosis." (2013). [On-line]. http://www.earaces.com/otosclerosis/htm Wikipedia Wikipedia (2013) [Online] (http://en.wikipedia.org/wiki/Keloid)