Rectus abdominis muscle

paired muscle running vertically on each side of the anterior wall of the human (of some other mammals) abdomen
Rectus abdominis.png

The rectus abdominis muscle is a muscle in the human body. It is commonly referred to as "Abs". It is a paired muscle that runs vertically from the lower chest to the pubic region people usually try to put stress to make it look as if they have huge abs and they help us run.