It also has an unusually shaped breastbone, distinguishing it from other birds in its suborder, the enantiornithines.
In any case it is an inflammation of the cartilage that attaches the front of the ribs to the breastbone.
For median sternotomy (access through the sternum, or breastbone), the patient will have a vertical scar on the anterior chest above the sternum.
These procedures do not require a median sternotomy (vertical incision in the breastbone) or cardiopulmonary bypass (heart-lung machine).
The keel on the breastbone, where birds attach the large muscles needed for flight, is also greatly reduced.
Pain behind the sternum (breastbone) or in the epigastric region around the stomach often feels like heartburn.
The female skeleton also has wider and shorter breastbone and slimmer wrists.
One of the most abnormal findings was the sternum (breastbone) and most parts of the frontal ribs were missing.
