Have you ever seen a really muscular abdomen? It kind of looks like six rounded protrusions, three on the left and three on the right, or like some people say, “a six-pack.” This is the rectus (straight in Latin) and abdominus, (the abdomen.) It has this name because it is the muscle that goes straight down the abdomen. This muscle is attached to the ribs as well as the pelvis and effects the moving forward of your body, like in a crunch. Together with the other core muscles the rectus abdominus keeps your spine stable and helps support your pelvis.
How familiar are we really with our very own abdominal wall? Everyone wants these mysterious “abs” stronger and shapely, but why?
First let’s talk about anatomy. Did you know there are four separate muscles that make up the abdominal wall? That’s right. The muscles of the abdominal area are called the rectus abdominus, the internal oblique, external oblique, and the transverse abdominus. There is a fifth muscle, the pyramidalis muscle, which is small and triangular in shape. It is low in the abdomen, located quite low and in front of the rectus abdominus.
These muscles work together to contain the internal organs, support the body (trunk), allow movement, and also cover and protect the internal organs.
The abdominal muscles also give support to the lower back. Weak abs can contribute to back pain.