Cardiac Cycle

What is another name for muscle cells?

myocytes

What is the pacemaker of the heart

sinoatrial node (SAN)

What are the properties of myocytes?

electrical charge

Depolarised mycoses occur when…

the charge is reversed

What is the effect of depolarisation?

myocytes contract

How does blood always flow?

from higher to lower pressured areas

When do valves open?

when the pressure is higher behind the valve than in front of it

When do valves close?

when the pressure is higher in front of the valve than behind

What does AV valve stands for?

atrioventricular valves

what are the AV valves?

tricuspid and bicuspid valves

in atrial systole, what are the state of ventricles?

relaxed

Term referring to relaxed ventricles?

ventricle diastole

what valves open during atrial systole?

tricuspid and bicuspid valves

how does contraction affect pressure in the atria?

increases the pressure