beautiful -head tilts- seeing the muscles this close.... they... .are different on either side. not perfectly symmetrical. one dips into his belly button where the other sits just above and another starts below and disappears. I never really.... thought about it, never looked this closely to know they could sit/form so differently under the skin.
thank you for this. good study for my muscle anatomy.
the non symmetry has to do with the type of muscle at the abdomen houses. the abdominal muscles are broken down into 3 groups, middle, and the 2 sides. each of the side groups runs along your ribs while the middle group is just in the middle, but there is a fiber that runs through the center and that's what creates the segments. there are 4 horizontal groups and are segmented in the middle. depending how the muscle is built and the individual, that fiber can be pulled in different directions which is what creates the uneven look. often times, when the person isn't flexing the imbalance won't be as prominent