Skeletal System
Superior Articular Facets of Ninth Thoracic Vertebra
Facies articulares superiores vertebrae thoracicae nonae
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The superior articular facets are the smooth, posteriorly and slightly laterally facing articular areas on the superior articular processes of a thoracic vertebra. They articulate with the corresponding inferior articular facets of the vertebra above, forming zygapophyseal joints.
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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.
