key term - Transversus abdominis

Definition

The transversus abdominis is a muscle located on the lateral sides of the abdominal wall, beneath the internal oblique muscle. It acts to compress the abdominal contents, playing a crucial role in maintaining abdominal pressure and stabilizing the spine.

Related terms

Rectus Abdominis:

A long muscle running from the pubic bone to the sternum, primarily responsible for flexing the lumbar spine and helping to compress the abdominal cavity.

Internal Oblique Muscle: Located just above the transversus abdominis, this muscle helps rotate and side-bend the trunk while also contributing to abdominal compression.

External Oblique Muscle: Situated on top of the internal oblique, it works alongside other muscles of the abdominal wall to twist and bend the trunk, as well as compressing abdominal contents