Structure Chest Wall The first of five functional layers consists of the bony skeleton consisting of the sternum and the spine, which are fixed, and the ribs that move up and outward on inspiration and down and inward on expiration.Courtesy of: Ashley Davidoff, M.D. TheCommonVein.net42530b08 Art of the SternumAshley Davidoff MD TheCommonVein.net42530b02 Art of the Sternum and Costochondral JunctionsAshley Davidoff MD TheCommonVein.net42530b04 Art of the Sternum and Costochondral Junctions and Soft Tissues and Upper LimbsAshley Davidoff MD TheCommonVein.net42530b08 Art of the The Chest Wall FamilyAshley Davidoff MD TheCommonVein.netlungs-0700 Breathing Lungs within the Chest WallAshley Davidoff MD TheCommonVein.net lungs-0024 Volume of lung displaced by heartA coronally reconstructed CT image showing the effect of the normal left sided position of the heart on the volume of left lung. Note how much smaller the left lung is compared with the right.Ashley Davidoff MD. TheCommonVein.net 32623 Normal iodine mapCT, Heart and LungsAshley Davidoff MD TheCommonvein.net 024 normal Muscles and Bones of the Chest Breathing Lungs within the Chest WallAshley Davidoff MD TheCommonVein.net lungs-0024 3D CT rendering of the anterior aspect of the rib cage, sternum, clavicles and shoulder joints.key words bone rib thoracic spine spinous processes scapula protection supportAshley Davidoff, M.D. TheCommonVein.net 49643 3D CT rendering of the posterior aspect of the rib cage, scapulae, and thoracic spine.key words bone rib thoracic spine spinous processes scapula protection supportAshley Davidoff, M.D. TheCommonVein.net49640 Bones of the ChestThe cross sectional appearance of the outer layer of bone is visualized in this CT scan through the heart. The vertebra (purple) and sternum (green) act as the anchoring stability as they remain fixed in position during the respiratory cycle. The ribs (orange) pivot like bucket handles off the sternum and spinal column. They move up and out during inspiration and down and in during expiration.Ashley Davidoff, M.D. TheCommonVein.net 42554ab07c01 Muscles and Bones of the ChestThe cross sectional appearance of the outer layer of bone is visualized in this CT scan through the heart. The vertebra (purple) and sternum (green) act as the anchoring stability as they remain fixed in position during the respiratory cycle. The ribs (orange) pivot like bucket handles off the sternum and spinal column. They move up and out during inspiration and down and in during expiration.Ashley Davidoff, M.D. TheCommonVein.net 42554ab07c Links and References Videos From AUR Title web link Chest Wall Diaphragm AUR Cardiothoracic Imaging