Posterior and Superior Mediastinum Flashcards
This structure descends against the thoracic vertebrae, deep to the pericardium, and has its anterior surface pressed by the left atrium.
Esophagus.
What are the three arteries that give vascular supply to the esophagus?
Esophageal, Left gastric, and inferior phrenic arteries.
Where does the blood drain from the esophagus?
Azygos vein, and the left gastric vein.
What innervates the esophagus?
Vagus nerve.
This nerve descends into the thoracic cavity anterior to the right subclavian artery.
Right vagus nerve.
This nerve is given rise from the right vagus nerve, it hooks around the right subclavian artery and ascends back into the neck en route to intrinsic laryngeal muscles.
Right recurrent laryngeal nerve.
This branch is a continuum of the right vagus nerve to the deep surface of the esophagus becoming the ________ _____ ____.
Posterior vagal trunk.
The left and right vagus nerves contribute to the cardiac ______, which slows heart rate, and pulmonary _____, which cause bronchoconstriction.
Plexuses.
This nerve enters the thorax between the left common carotid and subclavian arteries.
Left vagus nerve.
This nerve is given rise from the left vagus nerve, it hooks around the aortic arch by the ligamentum arteriosum and ascends back into the neck en route to intrinsic laryngeal muscles.
Left recurrent laryngeal nerve.
This branch is a continuum of the right vagus nerve to the anterior surface of the esophagus becoming the ________ _____ ____.
anterior vagal trunk.
The anterior and posterior vagal trunks exchange fibers, creating ________ ____ of nerves.
Esophageal plexus.
What is the relationship of the pulmonary arteries to the bronchi at the root of the lungs?
RALS; Right pulmonary artery is anterior to the right primary bronchus, and the Left pulmonary artery is superior to the left primary bronchus.
