Cardiovascular System: CARDIAC CYCLE Flashcards
means to contract
systole
means to dilate
diastole
contraction of the atrial myocardium
atrial systole
relaxation of the atrial myocardium
atrial diastole
is contraction of the ventricular myocardium,
ventricular systole
relaxation of the ventricular myocardium.
ventricular diastol
refers to the repetitive pumping process that begins with the onset of cardiac muscle contraction and ends with the beginning of the next contraction
cardiac cycle
During the previous ventricular diastole, the ventricles were filled with 120-130 mL of blood, which is called
end-diastolic volume
low-pitched sound, often described as “lubb.”
first heart sound
is a higher-pitched sound often described as “dupp.”
second heart sound
can be heard in some normal people, particularly those who are thin and young.
third heart sound
the aortic semilunar valve closes, and pressure within the aorta increases slightly, producing a_______
dicrotic notch