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semicircular canal |
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semicircular canal: see ear ear, organ of hearing and equilibrium. The human ear consists of outer, middle, and inner parts. The outer ear is the visible portion; it includes the skin-covered flap of cartilage known as the auricle, or pinna, and the opening (auditory canal) leading to the ..... Click the link for more information. . semicircular canal [¦sem·i′sər·kyə·lər kə′nal] (anatomy) Any of three loop-shaped tubular structures of the vertebrate labyrinth; they are arranged in three different spatial planes at right angles to each other, and function in the maintenance of body equilibrium. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Despite this fundamental difference in function between semicircular canal and otolith structures, diagnostic testing of vestibular function has traditionally involved measurement of horizontal semicircular canal function only. The tumor had invaded the internal auditory canal below the superior semicircular canal, and it extended anteriorly to the carotid artery. Computerized tomography images of the inner ear show semicircular canals, crucial for maintaining balance, like those of chimps. |
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