ribs
Last reviewed 01/2018
The ribs are a set of 12 paired bones which form the majority of the circumference of the thoracic cage. They are flat, elongated strips of bone with a significant bow that permits arching from junctions with the 12 thoracic vertebrae posteriorly and, for all but the most inferior 2 ribs, the costal cartilages or the sternum anteriorly.
The most significant pathology of ribs is that of traumatic fracture. They may be the site of metastasis. Occasionally, there may be a developmentally abnormal number of ribs; in the case of a cervical rib, this may cause neurovascular complications.
The prefix for terms relating to ribs is cost(o)-.