semicircular canal

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Related to Semi-circular canal: anterior semicircular canal

semicircular canal

n.
Any of three tubular and looped structures of the inner ear, together functioning in maintenance of the sense of balance in the body.

semicircular canal

[-sur′kyələr]
Etymology: L, semi-, half, circulare, to go around, canalis, channel
any of three bony fluid-filled loops in the osseous labyrinth of the internal ear, associated with the sense of balance. The posterior, superior, and lateral canals, all about 0.8 mm in diameter and perpendicular to each other, open into the cochlea. The posterior canal is the longest.
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Semicircular canals

semicircular canal

One of the three perpendicular tubular hollows, each forming two-thirds of a circle, that extend from the vestibule of the labyrinth in the inner ear. The semicircular canals are the bony shells that contain the similarly shaped semicircular ducts, membranous sensory organs that detect the angular acceleration and the orientation of the head.
See also: canal
References in periodicals archive ?
Caloric testing stimulates mainly the lateral semi-circular canal.
The continuous motion that you describe is related to motion in the inner ear semi-circular canals.
However, it is possible that, ascending, infection to his semi-circular canals, part of the inner ear, made him more susceptible to disorientation when deprived of external visual clues.
The inner ear comprises the cochlea, the vestibular and cochlear nerves, and the semi-circular canals.
There are three semi-circular canals in your inner ear that help you keep your balance.