Fig. 4.32 Rectus abdominis and pyramidalis muscles.
External oblique musclePosterior wall of rectus sheathRectus abdominis muscleTendinous intersectionInternal oblique muscle Arcuate lineTransversalis fasciaLinea albaPyramidalis muscle
Fig. 4.33 Organization of the rectus sheath. A. Transverse section through the upper three-quarters of the rectus sheath. B. Transverse section through the lower one-quarter of the rectus sheath.