Mediastinum Flashcards Preview

Anatomy (TOPNOTCH SUPPLEMENT) > Mediastinum > Flashcards

Flashcards in Mediastinum Deck (4)
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Space between pleural cavities in the thorax

Boundaries:
- Lateral: pleural cavities
- Anterior: sternum
- Posterior: vertebral column

Mediastinum

1

Divisions

Superior
- trachea, esophagus, thymus, phrenic nerve, Azygous vein, SVC, brachiocephalic artery & vein, aortic arch, left common carotid artery, left subclavian artery & thoracic duct
- aortic arch aneurysm, esophageal perforation (from endoscopy or invading malignancy), traumatic rupture of trachea

Anterior
- thymus, lymph nodes, fats, connective tissue
- Thymoma (associated with myasthenia gravis, RBC aplasia), thyroid mass, germinal cell neoplasm, lymphoma

Middle
- heart, pericardium, phrenic nerve, ascending aorta, SVC, IVC, coronary artery & vein
- pericardial cysts, branchiogenic cysts, sarcoidosis

Posterior
- descending aorta, esophagus, thoracic duct, azygous vein, splanchnic nerve, vagus nerve, sympathetic trunk
- ganglioneuromas, neuroblastomas, esophageal diverticula or neoplasms

2

Fetal structures

R & L umbilical arteries

L umbilical vein

Ductus venosus

Foramen ovale

Ductus arteriosus

3

Adult structures

Medial umbilical ligaments

Ligamentum teres

Ligamentum venosum

Fossa ovale

Ligamentum arteriosum