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Other Terms: Linea alba abdominis, Ligne blanche
The linea alba is a connective tissue raphe formed between the rectus abdominis where the decussating tendinous fibers of the lateral abdominal wall aponeuroses. It courses between the rectus abdominis muscle from the xiphoid process of the sternum to the symphysis pubis. It is wide and prominent superiorly and tapers to a narrow, almost nonexistent structure at its inferior end. Near its midpoint is the umbilicus, which is the point where the umbilical vessels penetrated the body wall in the fetus.