Mediastinum Flashcards
Whats in the superior Mediastinum?
Thymus Gland, great vessels of heart, trachea, esophagus, thoracic duct
Whats in the Anterior Mediastinum?
Between pericardium and sternum
Whats in the Middle Mediastinum?
heart and pericardium, parts of the great vessels, phrenic nerve, primary bronchi
Whats in the Posterior Mediastinum?
Descending aorta, esophagus, azygos/hemiazygos vv, thoracic duct
Innervation of the heart?
Parasympathetic: Vagus nerve Sympathetic: Sympathetic trunks
Where does it go? Anterior interventricular a. AKA Left anterior descending a. (LAD)
Serves both L and R ventricle on anterior surface and inter ventricular septum.
Where does it go? Circumflex artery.
Travels in coronary sulcus and branches to serve left ventricle and atrium!.
where does it go? Marginal artery
Margin of right ventricle. supplies right ventricle. not atrium.
where does it go? Posterior interventricular artery AKA Posterior descending artery.
Supplies both left and right ventricle. and IV septum.
Cool thing about anterior and posterior interventricler arteries.
they anastamose!
What are the 6 coronary artery that we need to know?
LCA RCA Circumflex Marginal LAD PDA
What are they 4 coronary veins we need to know.
Great cardiac vein middle cardiac vein small Cardiac vein Coronary sinus
Great cardiac vein
ant. walls of both ventricles and IVS
Middle cardiac vein
Pos. ventricle walls and IVS
small Cardiac vein
right ventricle (same as marginal a.)
