Your rectus abdominus is the muscle that makes up your six pack. It runs down the center of your stomach and helps flex your lower spine.
Your external oblique’s extend from your lower back across the sides of your abdomen. You flex your trunk with these and assists with breathing. Especially exhaling.
Your internal oblique’s are deeper and let you rotate your torso and bend sideways.
Your erector spinae are cable-like muscles that line the back of your spine and extend up to the base of your skull. They work with your other core muscles to keep your spine stable when you bend and twist.
Transverse abdominus is within the lower half of you abdomen. They stabilize your pelvis. If you get strong here, when you trip over a throw rug on the floor, you will less likely nose dive to the floor!!!
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