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superior thoracic aperture


Definition: the upper boundary of the bony thorax composed of the first thoracic vertebra and the upper margins of the first ribs and manubrium of the sternum. Note: clinicians refer to the superior thoracic aperture as the “thoracic outlet.” as in “thoracic outlet syndrome.”

Synonym(s): apertura thoracis superiorTA, thoracic inlet, thoracic outlet2

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.