Internal oblique

Definition

The internal oblique is a muscle of the abdominal wall that lies beneath the external oblique and above the transverse abdominis. It helps in rotating and side-bending the trunk, as well as providing support for abdominal contents.

Related terms

External Oblique: A muscle located on the surface of the sides of the abdomen, involved in bending sideways and rotating the trunk.

Transverse Abdominis: The deepest layer of abdominal muscles that wraps around the torso, providing stability to the lower back and core.

Rectus Abdominis: A long muscle extending along the front of the abdomen, known for its role in flexing the vertebral column and creating the "six-pack" appearance