Physics of a Heartbeat
by
Joel Carpenter
Physics 104
2012
junglemiami.blogspot.com
Behold the Heart
The heart is something that has been written about for thosands of
years. It is something of legend and lore and the very thing
that
we just a life by. The very fact that a heart can beat on
its own through electrical impulses is actually quite
magical. People
dedicate their lives to the study of a heart to learn the
intricacies of its motion.
The
heart does not simply function by electricity though. The
heart has many feedback mechanisms such as hormones, blood
pressure
and
temperature that keeps the heart beating regularly through times
of rest, exercise and times of fight or flight.
In this page, I will discuss the electrical aspects of the heart,
how the electrical impulse propogates, how it then travels through
the heart
and how it terminates.
Furthermore, I will disscuss two other main points. These
being, the fluidity and pressure of the blood moving through the
heart,
as well as how energy is conserved through the beating of the
heart.
buzzle.com
This picture depicts the measurements of a heartbeat taken by and
electrocardiogram (EKG)
Showing the depolarization of the cells of the heart, the
contraction, and the repolarization of
of the cells.
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