Costal

Costal may refer to:

  • an adjective related to the rib (Costa in Latin) in anatomy
    • Costal cartilage, a type of cartilage forming bars which serve to prolong the ribs forward
    • Costal facet (disambiguation)
    • 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