The most famous abdominal muscle, often called the "six-pack." It runs vertically along the front of the abdomen and is responsible for flexing the lumbar spine (as in a crunch).
They help maintain an upright posture and prevent the lower back from over-arching. Common Conditions
The abdominal muscles are active in nearly every daily movement: abdominal muscle
Often caused by overstretching or sudden, violent movements.
They act as a rigid wall to protect vital organs like the stomach, liver, and intestines from external impacts. The most famous abdominal muscle, often called the "six-pack
These three muscles are stacked in layers on the sides of your trunk:
The deepest layer. It acts like a natural "weight belt" or corset, stabilizing the trunk and maintaining internal abdominal pressure. Key Functions They act as a rigid wall to protect
The outermost layer. They allow the trunk to twist to the opposite side and help with side-bending.