What does "Rectus abdominus muscle" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.
The rectus abdominus muscle, often referred to as the "abs," is a long, flat muscle that extends along the front of the abdomen. This is the muscle that creates the look of a "six-pack" when it is well-defined and toned. It's main function is to help move the body between the ribcage and the hips, like when you do a sit-up. It also helps with breathing and protects the organs in the abdomen.
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