Superior Mediastinum and Root of Neck - LO 7
7. Identify the contents of the superior mediastinum.
7. Identify the contents of the superior mediastinum.
The major contents of the superior mediastinum include the:
Arch of the aorta
Brachiocephalic trunk, right subclavian a., & right common carotid a.
Left common carotid a.
Left subclavian a.
Pulmonary trunk
Pulmonary veins
Superior vena cava & tributaries
Right & left brachiocephalic vv.
Right & left subclavian vv.
Right & left internal jugular vv.
Lymphatic ducts (e.g. thoracic duct) as they drain into the vicinities of the venous angles (junctions of the internal jugular and subclavian vv.).
Vagus nn. (CN X)
Phrenic nn. (from the cervical plexus)
Trachea, to the division of the primary bronchi
Esophagus
Ligamentum arteriosum (remnant to the ductus arteriosus)