A semicircular canal or a semicircular duct is one of three semicircular, interconnected tubes located inside each ear. The three canals are: ==Structure== The anterior and posterior semicircular ducts are oriented vertically at right angles to each other. The lateral semicircular duct is about 30-degree angle from the horizontal plane. The orient...
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http://en.wikipedia.org/wiki/Semicircular_canal
(from the article `ear, human`) The three semicircular canals of the bony labyrinth are designated, according to their position, superior, horizontal, and posterior (Figure 3). The ... The angular acceleration detectors within the semicircular canals function in a different way. The three canals—which in fact are considerably more ...
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http://www.britannica.com/eb/a-z/s/62
<anatomy> Three membranous semicircular tubes contained in the bony labyrinth of the inner ear. They are concerned with equilibrium and the interpretation of the bodys position in space. ... The three canals are set anterior, posterior, and lateral, at right angles to each other and are situated superior and posterior to the vestibule. ... Ea...
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http://www.encyclo.co.uk/local/20973
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n] - one of three tube loops filled with fluid and in planes nearly at right angles with one another
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http://www.webdictionary.co.uk/definition.php?query=semicircular%20canal
noun one of three tube loops filled with fluid and in planes nearly at right angles with one another; concerned with equilibrium
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https://www.encyclo.co.uk/local/20974
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