There are six different muscles of the anterior abdominal wall. These muscles are the rectus abdominus, better known as your six pack, the oblique muscles (2 external and 2 interior muscles on each side) and the transverse abdominis muscle. Your abdominal muscles extend from different places on the ribs to various places on the pelvis. The primary purpose of your ab muscles is to provide movement and to support your trunk. Here’s a closer look at the oblique abdominal muscles.
The Internal Oblique muscles - opposite of the back muscles - these internal oblique muscles, when strengthened, keep the back muscles from being over-taxed:
The External Oblique muscles - think waistline - the area where you button your jeans:
