in an out, blood and perception

cardiac muscles are smooth central organs
that through a complex and concrete series of pumping mechanisms
keep blood in motion past lungs for oxygenation
through multiple passages with latinate self-evident names;
they are powered by adenenine triphosphate
and necessary for life in all viviparous mammals;
but that's not all a heart does.
but that's not all a heart does.
but that's not all a heart does. 
it keeps my blood.
red.
red.
red.

-Citron