Peripheral vascular resistance

Pressure Volume Loop of Left Ventricle

Pressure-Volume Loop of Left Ventricle:

Pressure-Volume Loop of Left Ventricle:

• Pressure range:• 120 to 80 mmHg

• Volume range:• 120 to 50 ml

d to a

• During Diastole ventricle fills pressure increases from d to a.

a to b

• During Iso-volumetric contraction sharp rise in pressure from a to b.

b to c

• During ventricular ejection sharp rise in pressure.

Point c

• Aortic valve closes at point c.

c to d

• During Iso-volumetric Relaxation pressure falls from c to d.

MURMURS