superior thoracic aperture

(redirected from apertura thoracis superior)

su·pe·ri·or tho·rac·ic ap·er·ture

[TA]
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."