A fifth muscle known as the pyramidalis muscle lies just in front of the rectus abdominis muscle and is much smaller than the other muscles. The pyramidalis muscle lies in the lower abdomen and does not extend all the way across the abdomen from the pelvis to the rib cage. The main abdo...
I think my chest cramps are from a pulled muscle. I lifted a really heavy box up into the attic and was almost lying on my back to get the darned thing up there. I know I pulled something because there was an immediate severe pain in the upper left side of my chest. That was yest...