The abdominal muscles are a complex group of muscles located between the ribs and the pelvis that form the "walls" of your midsection. They play a vital role in protecting internal organs, supporting the spine, and enabling movement such as twisting and bending. Core Anatomy

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).

The abdominal wall is composed of five main pairs of muscles, typically categorized into vertical and flat groups: 1. Vertical Muscles (Middle)

Located just beneath the external obliques. They work with the external obliques to facilitate rotation and side-bending.