Tim Taylor is a senior writer at Innerbody Research focusing on human anatomy and physiology. Tim earned both his Bachelor of Science degree in Biology and his Master's degree in Teaching from the University of Pittsburgh.

Last updated: May 5th, 2025

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The posterior semicircular canal is one of three bony semicircular canals that lie at right angles to each other. They each follow a circular path about six millimeters in diameter, and each occupies a different plane within the inner ear. It is one of two that stand vertically.

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