ABSTRACT
ANATOMY OF THE CHEST WALL 1. Which one of the following statements is correct regarding the anatomy of the
chest wall? A. The visceral and parietal pleura have identical embryologic origins. B. Of the twelve paired ribs, up to eight directly articulate with the sternum. C. The sternum has three distinct components in all patient groups. D. Neurovascular bundles lie at the inferior margin of the ribs, between the external and
internal intercostal muscles. E. The internal mammary vessels usually bifurcate at the level of the fifth interspace.
