Costal may refer to: * an adjective related to the

rib In vertebrate anatomy, ribs ( la, costae) are the long curved bones which form the rib cage, part of the axial skeleton. In most tetrapods, ribs surround the chest, enabling the lungs to expand and thus facilitate breathing by expanding the ches ...

() in anatomy ** Costal cartilage, a type of cartilage forming bars which serve to prolong the ribs forward ** Costal margin, the medial margin formed by the false ribs ** Costal surface (disambiguation) ** Costal groove, a groove between the ridge of the internal surface of the rib * Costal vein, a type of insect wing segment in the Comstock–Needham system

See also