The document discusses the autonomic nervous system structures in the thoracic cavity including: 1. The thoracic part of the sympathetic chain, its course and branches. 2. The autonomic plexuses in the thorax including the pulmonary, esophageal, and cardiac plexuses. 3. The lymphatic drainage of the chest wall and thoracic contents, mentioning the superficial and deep drainage of the chest wall and mediastinal, tracheal, bronchial, and pulmonary drainage.