The xiphoid process is the smallest and most inferior part of the sternum (breastbone), forming its pointed tip. It begins as cartilage and typically ossifies during adulthood, though the timing varies among individuals. This small projection serves as an attachment point for several abdominal muscles and the diaphragm, helping maintain the structural integrity of the upper abdominal wall.
The term comes from the Greek words "xiphos" meaning sword and "eidos" meaning form or shape, as this process resembles a small sword blade pointing downward.
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