| During expiration, the rectus abdominous muscle receives motor innervation from both the thoracoabdominal intercostal and subcostal nerves. |
| An immensely powerful muscle, the rectus abdominous starts out from the rib cage and stretches vertically over the abdominal wall. |
| Spasm of the upper part of the rectus abdominis muscle may simulate a tumor in the epigastric region. |
| The rectus femoris runs straight down the front of your thigh and, ideally, should protrude farther than any of your other quad muscles. |
| The spine is stable and still, with the rectus abdominis, obliques and erector spinae muscle isometrically contracting. |
| The rectus abdominis runs from the top of the pubic bone to the sternum and lower three ribs. |
