mediastinal branches of thoracic part of aorta mediastinal branches of thoracic part of aorta the mediastinal branches are numerous small vessels which supply the lymph glands and loose areolar tissue in the posterior mediastinum. mediastinal branches of thoracic part of aortadetailssourcethoracic aortasuppliesposterior mediastinumidentifierslatinrami mediastinales partis thoracicae aortaeta98a12.2.11.005 a12.2.08.030ta24190fma71539anatomical terminology