CV7 Coronary Blood Flow Flashcards
The blood supply to the ____ derives from the __ and _____ coronary arteries, which orginate at the root of the ____ behind the cusps of the ____ valves
heart, LR, aorta, aortic
The venus system ___ the heart and dumps into the _____
drains, coronary sinue
In the normal heart, the oxygen requirements of the myocardium are cont matched by the ____
coronary arterial supply
What are the 3 major determinants of myocardial oxygen consumption ?
heart rate, wall stress, and cardiac contractility
The left cornonary blood flow is greatest during sis/dia
dia
The right coronary blood flow is greatest during sia/dia
sis
To support both electrical and mech activities the heart needs:
a cont supply of ocygen and nutrients
What does the heart have to support both the elect and mech activities?
High oxygen extraction ratio
Which coronary artery branches immediatley?
left
