0 a small, triangular muscle in the front of the abdomen --
The pyramidalis muscle is small and triangular.
The procerus (pyramidalis) muscles, in the bridge of the nose, arise from the lower nasal bone to the lower forehead, on each side of the midline.
At the lower end of the rectus abdominis, the pyramidalis tenses the "linea alba".
It affords attachment to the inguinal falx, and to the abdominal external oblique muscle and pyramidalis muscle.
It contains the rectus abdominis and pyramidalis muscles.
The pyramidalis muscles are typically left attached to the aponeurosis.
The rectus muscles are separated to the pubis symphysis and separated from the pyramidalis muscles.
