How does the heart meet its own respiratory needs?
Back
Card 27
Front
What can blockage of the coronary arteries lead to?
Back
Card 28
Front
Is contraction of the heart also known as systole or diastole?
Back
Card 29
Front
Is relaxation of the heart also known as systole or diastole?
Back
Card 30
Front
How is the direction of blood flow through the heart maintained?
Back
Card 31
Front
Via which two blood vessels does blood return to the atria?
Back
Card 32
Front
What happens to the pressure in the atria as they fill with blood? How does this pressure change affect the AV valves?
Back
Card 33
Front
During diastole the muscular walls of both the atria and ventricles are relaxed, how does this affect the pressure in the ventricles? How does this pressure affect the semi-lunar valves?
Back
Card 34
Front
Into what two stages is systole divided?
Back
Card 35
Front
What happens during atrial systole? How is this linked to the muscular walls of the atria being so thin? During this stage, are the muscular walls of the ventricle relaxed?
