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Elsevier
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Internal Surface of Seventh Rib
Skeletal System

Internal Surface of Seventh Rib

Facies interna costae septimae

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Description

The internal surface (inner surface) of seventh rib is its smooth, concave, inner area. It is one of the two surfaces of the body of the seventh rib, the other being the external surface.

The internal surface of seventh rib consists of the costal groove, which is located on its inferior edge, adjacent to the ribs inferior border. It provides an insertion site for the transversus thoracis muscle, attachment sites for the innermost intercostal muscles, and is covered by endothoracic fascia.

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