Anatomy of Hearing including Ear Structures and Brain Structures
The ear, an organ for hearing and balance, is anatomically divided into three sections: the outer ear, the middle ear, and the inner ear (Henderson). Each section contains many distinct parts that assist in the task of detecting and interpreting sound which is otherwise known as hearing (Henderson).
The outer ear is composed of the auricle (pinna) and the external auditory canal (ear canal) (Sisco). The outer ear functions to catch sound waves and funnels them through the ear canal to the middle ear (Inner body). A sound wave, also known as a pressure wave, is a "repeating pattern of high pressure and low pressure regions moving through a medium" (Henderson). The human ear is capable of hearing sound waves 20-20,000 Hz (PATTS). The cartilage skin flap that is most externally visible is known as the pinna (Innerbody). The pinna, besides helping to catch sound waves, provides protection for the ear canal and ear......
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