Cardiac Circulation Flashcards
why might a thrombus in a coronary artery cause sudden death
the coronary arteries supply the myocardium with oxygen, if that fails the heart fails
what are coronary arteries
arteries that branch off the aorta and supply the myocardium
what are the coronary sulcus
groove at the junction between the atria and ventricles where the coronary arteries are located
what are the right arteries
posterior inter-ventricular artery
marginal artery
what are the left artery
anterior inter-ventricular artery
circumflex artery
what happens to the right arteries when ventricles are contracting
they are compressed
when happens to the right arteries when the ventricles are not contracting, heart relaxation
they fill with blood
where is the myocardium drained
cardiac veins
what are cardiac veins
veins that drain the myocardium and empty into the coronary sinus
what is the coronary sinus
empties into the right atrium
does the blood in the heart nourish the myocardium
No
what nourishes the myocardium
right and left coronary arteries
