Superior laryngeal nerve

Introduction The thoracic cavity has complex networks of lymphatics which have a fundamental immunological function protecting intrathoracic organs such as the lungs, pleura, oesophagus and mediastinum. These networks drain interstitial fluid from the lungs, chyle from the gastrointestinal tract, and white blood cells and other immune components (Brotons et al., 2012). Thoracic lymphatics are involved in several diseases that most thoracic surgeons are concerned about. The most important…