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Article Series: Heart Health
I Want A Healthy Heart!
The
Structure of a Human Heart
When it comes to the health of your heart,
it helps to have basic understanding of its structure. This
is especially true if you’ve been diagnosed with a specific
problem that stems from your heart’s anatomy. Let’s discuss
the structure of your most important muscle in very simple
terms.
Your
heart is made up of four chambers. The right atrium and
ventricle help to circulate blood through the lungs. The left
atrium and ventricle help to circulate blood to the rest of
your body.
So the blood that’s on the right side of your heart is depleted
of its oxygen and the blood that flows through the left side
of your heart is oxygen-rich. The atria receive blood into
the heart and the ventricles pump blood out of it.
Between these four chambers there are valves. These valves
help to keep blood flowing in the right direction. They also
prevent it from slipping back to the wrong chamber when the
heart is at rest. In a sense, they are one-way doors.
The cells of the heart are specialized and actually will beat
on their own. To make sure that they all beat at the right
time, the heart has a special area called a pacemaker. This
is located in the right atrium of the heart and is called the
SA node. It sends an electrical impulse to regulate your heartbeat.
The heart is the central organ of the circulatory system.
The entire system works together to deliver oxygen
and nutrients to the cells. At the same time it picks up wastes and carbon
dioxide from the cells. In order to do this, blood vessels
provide a transportation network for delivery.
The left
ventricle empties blood out into the aorta – the
strongest artery in the body. It carries the blood away from
the heart and branches off into smaller arteries and eventually
blood makes its way to the capillaries.
At the capillaries the blood makes its exchanges and then
returns to the heart through the veins. The vena cava is the
major vein that returns blood to the heart. There are also
pulmonary arteries and veins that transport blood from the
heart to the lungs and then back again.
The heart may seem like a simple structure, but it can actually
be quite complicated because of its many structures and its
essential functions. The heart is the most efficient pump on
earth – no manmade structure can come close to its efficiency
and longevity.
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by SolveYourProblem.com
: 2008
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