Playing is Learning
The Specifics of the Human Ear
June 17th, 2015
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Welcome to the World of PROFESsee™by seeCOSM™ PROFESsee™ is my title. I am the perpetual learner, in pursuit of knowledge, wisdom and truth. I derived my name from professor |
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The ear might just look like another simple funny organ correctly placed at both sides of our heads, but be assured that it is a piece of work in there. You can think of it as a micro sound engineering company. There are many small parts that do great things like letting you hear your phone ring or your neighbor’s dog barking all night long. Sound travels in vibrations and for this reason, the ears have to handle three major tasks to enable hearing. It must direct the sound waves into the small engineering company where the air pressure fluctuations will be sensed and translate the fluctuations into electrical signal codes that the brain can understand. It is crucial to understand that though the brain is master in the body, it actually isn’t that smart and requires organs like the ear to decipher information. The outer ear, yes, the satellite-like thing that gets a lot of pinching when you are a kid, is the one responsible for directing the sound waves into the sound engineering company, or the inner ear. It also allows you to identify from which direction sound is coming. Once the waves are directed into the ear canal, they come across the eardrum, basically like the one in your favorite band, only that it is vibrated by sound waves and not the violent hitting that goes on in a band. Since the eardrum is more sensitive than your skin, it vibrates with every small sound wave. These vibrations cause some air pressure fluctuations. There are parts in the ear such as the osscicles and the cochlea, which are responsible for taking up the fluctuations and amplifying the vibrations. The cochlea through a number of rocket science processes, sends electrical impulses to the brain for an understanding that lets you differentiate between a message tone and a battery low beep. Can you Answer the questions about the ear? Image courtesy of: http://leavingbio.net/the%20senses_files/the%20senses.htm |
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