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Ventricular Diastole and Systole - Coggle Diagram
Ventricular Diastole and Systole
Systole
Rapid ventricular ejection
3) Blood
ejected
4)
Ventricular pressure
reach
max level
2)
Semilunar
valve open
5)
Pressure
in
great vessel increase
.
Volume in ventricle decrease
1) ventricular pressure
exceeds
pressure in great vessel
Reduced ventricular ejection
(last phase)
3)
Pressure
in
great vessel
also
start decreasing
4) End systolic volume (
ESV
)
remain
in the
ventricle
at the end of phase
2) Ventricle continue to
eject at lower rate
5)
Atrial filling continues
1)
Ventricular pressure
start
decrease
(as large volume ejected)
Isovolumetric
contraction
2) The
ventricle
start to
contract
3) causes
rise in ventricular pressure
and
closes atrio ventricular valve
producing first heart sound
(S1)
1) Ventricle are
filled
with the blood volume called
EDV
4) Ventricular pressure rise sharply, but the volume
remain at EDV
Diastole
Reduced ventricular filling
3)
Atrial and ventricular pressure become equal
at the
end of phase
2) As the
pressure gradient
between atria and ventricle is
low-
amount of blood flow is less
longest phase
1)
Ventricular filling
continues
Atrial systole
2)
Small volume
of blood fill the ventricle produced S4
3) Ventricular
volume**
reach EDV**
1)
Depolarization
of atrium. Both atria
contract
4) Ventricle
ready for next systole
Rapid ventricular filling
3)
Blood flow
is
rapid
due to
high pressure gradient
4) Rapid flow produced
S3 sound
2)
AV valve open
cause
blood to flow to ventricle
5)
Max filling
occur, v
entricular volume increase
1)
Ventricular pressure
fall
below atria
6)
Ventricular pressure remains low
as
ventricle is relaxing
Isovolumetric ventricular relaxation
3)
Semilunar valve close
produced S2
4)
Ventricular pressure fall steeply
,
Ventricular volume
remains same at ESV
2) Ventricular
pressure fall below
the
pressure of great vessel
5)
Atrial filling continues
1) Ventricle
start relax