the xiphoid process is at what level vertebra
Xiphoid Process Pain â Anatomy, Causes and Treatment. The xiphoid process, also called xiphosternum and metasternum, lies at the level of 10th thoracic vertebrae. It is also the lowest and the smallest part of the sternum, marks the lower limit of the thoracic cavity and the lower border of the heart. At birth, the xiphoid process is cartilaginous, but it slowly ossifies (turns to bone) from the central core after middle age (usually around 40 years of age).