Description
The external surface (outer surface) of eleventh rib is its smooth, convex, outer area. It is one of the two surfaces of the body of the eleventh rib, the other being the internal surface.
The external surface of eleventh rib consists of the angle, which is located on its posterolateral aspect. It provides:
—origin sites for the external abdominal oblique, iliocostalis thoracis and latissimus dorsi muscles;
—insertion sites for the levatores costarum breves, levatores costarum longi, internal abdominal oblique, longissimus thoracis and serratus posterior inferior muscles.
Related parts of the anatomy
