| With the head erect, the macula in each utricle is oriented horizontally, and in the saccule vertically. |
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| In terrestrial vertebrates, otoconia are found in three inner-ear sensors, the saccule, the utricle, and the lagena. |
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| However derived, the presence of a saccule is clear indication of an incompetent valve and, therefore, reversed flow down the vein when upright and exercising. |
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| It is usually located on the floor of the utricle or near the junction of the utricle and the saccule. |
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| Each saccule and utricle has a single cluster, or macula, of hair cells located in the vertical and horizontal planes, respectively. |
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| In the utricle and saccule of the inner ear there are patches of hair cells known as maculae. |
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| The receptor organ of posture and equilibrium is a composite one located in the semicircular canals, the utricle, and the saccule of the inner ear. |
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| The otolith organs, which consist of the utricle and saccule, are sensitive to linear accelerations. |
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| The vestibular organ is responsible for the balance and consists of the saccule, the utricle, and three semicircular canals. |
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| Linear acceleration is sensed by a pair of organs the saccule and utricle while there are three receptor organs called semicircular canals in each vestibular apparatus for the detection of angular acceleration. |
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| This might imply that the limited damage induced by the dislodged otoconia does not disrupt utricular function or that the saccule is the source of the problem. |
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