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The primary function of the linea alba is to keep the right and left abdominal muscles separated. The obliques and the transverse abdominis (your other abdominal muscles) also connect to the linea alba, making it like an anchor in your torso. It also helps absorb force or pressure to your abdomen. The linea alba is highly elastic and capable of expanding. However, it must be able to stiffen or tighten up to support your abdominal muscles and stabilize your movements.
