1 — Innermost intercostal muscle; 2 — External intercostal muscle; 3 — Posterior intercostal arteries; Azygos vein; 4 — Intercostal nerves, anterior rami; ventral rami; 5 — Internal intercostal muscle; 6 — Internal intercostal membrane; 7 — Subcostales; 8 — Rib [XII]; 9 — Intertransversarii laterales lumborum; 10 — Quadratus lumborum
