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Human Heartan important big muscle
On this web page|
we just try to give
you a little glimpse.
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3000 years ago, a Chinese doctor wrote down: ".. the heart regulates all blood in the human body|
The blood never stops circulating ..."
This knowledge was forgotten for 1500 years.
The English doctor William Harvey published 1628 "How the heart and the blood moves"
An accident happens, you got a cut - a red sap drops out:
Blood - a fluid that is pumped by your heart through the vessels of your body!
The heart pumps blood through all of our arteries and veins
Blood circles through our body, through the bodies of all mammals.
With this circulatory system our body gets its nutrients,
gets hormones, liquids. Repair cells are transported to damages,
? oxygen filled red blood cells bring energy to muscles,
and a big part to our brain!
In red you see the arteries transporting oxygen,
in blue you see veins, blood with low amounts of oxygen.
moving back towards the heart, than into the lungs.
Look at all the arteries and veins!
Imagine 60000 miles of bigger and smaller pipes
in every human body!
That is about 2 times around our globe ...
our muscle engine heart has to work 24/7
every day of the year
every day as long as we live!
If we would drain all the blood out of an adult human body
about 5 liters = 5.3 US-quarts of blood would be in our bucket
The most important connection:
The heart pumps blood to the lungs
to enrich it with oxygen,
and to get rid of the carbon dioxide CO2
That's the way blood ingredients are pumped through our blood vessels
Our heart transports blood enriched with oxygen and other ingredients
Blood brings nutrients to every cell in our body.
Blood takes the oxygen while been pumped through our lungs.
Our heart - a strong muscle around a shell, pumping blood, quart by quart, as long as we live ...
Our heart has four cavities that fill with blood.
Doctors call these two cavities atria, the
other two cavities are named ventricles.
The two atria form the curved top of the heart.
The left ventricle contracts most forcefully!
Between the two halves is a wall, called the septum,
separating the right and left sides of the heart.
For a connection the mitral valve and the
aortic valve, normally a tricuspid, what means
with three leaflets, valve opens and closes.
On the top of our heart large blood vessels start the transport.
The largest is the aorta, also called main artery,
which carries nutrient-rich blood away from the heart.
The other very important vessel is the pulmonary artery
which connects the heart with the lungs
as part of the pulmonary circulation system.
Here you see a very small artery, just big
enough for the red blood cells.
Inside the arteries blood is transported
away from the heart full of oxygen
enriched later with nutrients, hormones
A healthy heart is very important for our life!What can we do to keep our bodies healthy?
Eat in balance, drink in balance, don't smoke,
don't use illegal drugs!
Train your brain as you train your body!
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