Layers of thoracic wall 1. skin 2. Sup. fascia: mammary, fat tissue, sup. blood vessels, cutaneous nn and lymphatic vessels 3. Deep fascia 4. Muscles: 4 layers 5. Intercostal space: intercostal muscles, intercostal blood vessels and nerves, int thoracic blood vessels and lymph nodes 6. Int. thoracic fascia: dense connective tissue. lined on the inner surface of ribs and intercostal spacesLayers of thoracic wall 1. skin 2. Sup.fascia: mammary, fat tissue, sup. blood vessels, cutaneous nn. and lymphatic vessels. 3. Deep fascia. 4. Muscles: 4 layers: 5. Intercostal space: intercostal muscles, intercostal blood vessels and nerves, int. thoracic blood vessels and lymph nodes. 6. Int, thoracic fascia : dense connective tissue, lined on the inner surface of ribs and intercostal spaces