Costal Facet of Twelfth Thoracic Vertebra
Fovea costalis vertebrae thoracicae duodecimae
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The costal facets are the smooth articular areas on the vertebral body of the twelfth thoracic vertebra. They are found on the upper edge of the posterolateral aspects of the vertebral body, just anterior to the roots of the pedicles.
Each costal facet of the twelfth thoracic vertebra is a complete facet that articulates with the head of the twelfth rib, forming the joint of the head of the twelfth rib.
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Thoracic Vertebra
The thoracic inlet is best described as a thin axial plane of tissue best defined by its osseous boundaries: the body of the first thoracic vertebra posteriorly and superiorly, the first pair of ribs and their costal cartilages bilaterally, and the superior border of the manubrium anteriorly and inferiorly.
