Right side of the heart pumps to...
֎ -:- Lungs
Left side of heart pumps...
֎ -:- simutaneously to body
Septum
֎ -:- wall that separates two pumps
atrioventricular valves
֎ -:- separate atria and ventricles
heard at apex, located at bottom of heart: 5th rib intercostal space
Apical pul...
, E x c e l l e n c e i s k e y | 2 0 2 0 2 5 ~ P a g e |2
heard at BASE, located at TOP of heart
pulmonic valve
֎ -:- located on right side of heart, 2nd L intercostal space
aortic valve
֎ -:- located on left side of heart, 2nd R intercostal space
Diastole phase
֎ -:- ventricles relax, heart fills with blood
2/3 of cycle
AV valves (tricuspid and mitral) are OPEN
pressure in atria is higher than in ventricles.
1st filling phase is called early or protodiastolic filling.
2nd filling is called presystole or atrial systole
Systole phase
֎ -:- blood pumped from ventricles and fills pulmonary and systemic arteries
1/3 of cardiac cycle
ventricular pressure is now HIGHER than that of atria, causing atria to close. After blood ejection,
pressure falls in ventricles. When pressure falls below pressure in aorta, some blood flows backward
towards ventricle, causing aortic valve to shut.
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