|BSB directory||BSB Education||BSB lectures||BSB Mission||Patient Earth|
Human Heartan important big muscle
On this web page|
we just try to give
you a little glimpse.
Send us an email to learn more!
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!
Enjoy life - enjoy Nature!
We have to protect Nature to protect our future!|
Nature Conservation protects Nature = humans + animals + plants = Earth!
International charitable NonProfit Bear Springs Blossom Nature Conservation 501(c)(3)
Why we see a rainbow?
Where does water comes from?
Biodiversity essential for life
Why I am the only bear in the TX Hill Country?
Why mushrooms look so different?
Why green leaves turn red in fall?
Why recycling helps humans?
Why air pollution makes you sick?
Why Wind energy is renewable energy?
Why is CO2 a good and a bad gas?
Why mountains + volcanoes exist?
Why are whales no fish?
How is climate change affecting our life?
How does a sustainable life style change the future?
How butterflies can color?
How can You get a better gas mileage?
How does pollution harm humans and animals?
How important is the Water-cycle?
How renewable energy works?
How do oceans affect all life on Earth?
How do corals grow?
How do oceans current change our food supply?
Bear Springs Blossom Nature Conservation
International charitable nonprofit org. 501(c)(3)
BSBNCG POB 63295 Pipe Creek 78063 TX USA
Our Earth - - Why is Earth sick? - - Our Future??
Earth's solar system - - Our Moon - - Earth's Atmosphere
About Life on Earth - - The Gulf stream
Quiz Earth Oceans - - Nature Quotes - - Bacteria uncountable numbers
Hear and feel the wonders of Earth
BSB volunteers try to be as accurate as possible, but we are not responsible for broken or false links or misinterpretation
We don't collect information from you.
BSB was founded 2002 +
- Why Earth has continents?
- Why Earth has earthquakes?
Maps of Earth
All about Earth
Climate Change Solutions
- Why is Earth sick?
Life on Earth
BSB Information on Earth:|
- Astonishing photos from Earth
Earth from Space
Earth's solar system
Info about NASA
Keep Earth clean
|BSB Information on Water:
Why Earth has water
The H in H2O
Power from Water
How to save water
Water + Energy
Water + Trees
Water journey 1
Thirsty for water
Water Drought article
- Why does all life on Earth depend on water?
- Why are the oceans salty?
- Why Water is a very special 'juice'?
- Humans can live without food for weeks, but
- without water we will die after 3 days.
- Why do Humans use huge amounts of water to produce electricity?
- Is salt-water more heavy?
- Why can water dissolve so many substances?
- Does water expand when it gets warmer?
|Fair Use Notice|
All material on 1000+ BSB web-pages is intended to advance understanding of the environmental, social, scientific, and economic issues of Nature conservation. We believe this constitutes a "fair use" of any copyrighted material as provided for in section 107 of the U.S. Copyright Law. In accordance with Title 17 U.S.C. Section 107, the material on this site is distributed without profit to those who have expressed an interest in receiving the included information for research and educational purposes. If you wish to use copyrighted material from our websites for purposes of your own that go beyond "fair use," you must obtain permission from the copyright owner. If you are the owner of copyrighted material(s) appearing on this site, and wish it to be removed, please contact us directly.