Assertion: mediastinum's structure | /r/HasProperty | vein
Facets:
Source sentences:
text: It contains several important structures that include the lower ends of the sternohyoid, sternothyroid and longus colli muscles, thymus remnants, great vessels and veins, the trachea, the esophagus, related nerves and the thoracic duct, in addition to the paratracheal, brachiocephalic and tracheobronchial lymph nodes.