| The rectus femoris, a long muscle that runs straight down the front of the thigh, is one of the major muscles of the quadriceps. |
| The exceptions are the superior oblique, which is enervated by the trochlear nerve, and the lateral rectus, which is enervated by the abducens. |
| The spine is stable and still, with the rectus abdominis, obliques and erector spinae muscle isometrically contracting. |
| An immensely powerful muscle, the rectus abdominous starts out from the rib cage and stretches vertically over the abdominal wall. |
| The rectus abdominis runs from the top of the pubic bone to the sternum and lower three ribs. |
| During expiration, the rectus abdominous muscle receives motor innervation from both the thoracoabdominal intercostal and subcostal nerves. |