My Heart
Tim Griffin

            You know my heart has got four chambers,

            Two ventricles below, two atria above

            And all four chambers are filled with love for you

            But that’s a metaphor you see

            Because my heart beats just for me

            I need my heart to pump my blood

            But that don’t mean I’m not in love with you

My right atrium gets blood from the venae cavae

Then sends it down through my tricuspid valve

My right ventricle contracts while my pulmonary valve acts

Like a one-way door going up you see to my pulmonary artery

My blood goes to my lungs to pick up oxygen

And also to get rid of CO2

The blood comes back again through my pulmonary veins

And then my heart keeps beating for me, not for you

            You know my heart has got four chambers,

            Two ventricles below, two atria above

            But that’s got nothing to do with love

            It’s another thing entirely

            You know I need my heart, it’s true

            That’s why I won’t give it to you

            I need my heart to pump my blood

            But that don’t mean I’m not in love with you

My left atrium gets blood from the pulmonary veins

And sends it on down through my mitral valve

My left ventricle will squeeze blood out to my arteries

Through my aortic valve, you know it’s sorta like a one-way door to my aorta

My blood will circulate through all my systems

And pass through capillaries along the way

They say my heart has so much power, it beats four thousand times an hour

And pumps about two thousand gallons every day

            You know my heart has got four chambers,

            Two ventricles below, two atria above

            And all four chambers are filled with blood for me

            I’ll never give my heart to you

            But don’t let that make you blue

            I only need my heart to pump my blood

            And that don’t mean I’m not in love with you

            I only need my heart to pump my blood

            And that don’t mean I’m not in love with you.

"My Heart" live at Kulak's