Review Article
Transversus Abdominis Plane Block: An Updated Review of Anatomy and Techniques
Figure 2
The muscular structure of the anterolateral abdominal wall. RA: rectus abdominis; TA: transversus abdominis; IO: internal oblique; EO: external oblique; LS: linea semilunaris. The red dotted line: the lateral border of rectus abdominis.