Transver… what?

This oft-ignored muscle, the Transverse Abdominis[footnote]Transverse Abdominal Muscle if you’re english; TVA if you’re cool.[/footnote], is one of the 4 major muscles which make up the abdominal wall. It is the deepest of them — layered below the internal abdominal obliques — and wraps around the spine for extra stability.

Body-licious.