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Cardiovascular System
Cardiovascular System
• Consists of the Heart
and three different
types of blood vessels.
• Arteries
• Capillaries
• Veins
http://www.thewellingtoncardiacservices.com/the-heart-cardiovascular-system.asp
The Heart
Pumps blood through out the body
•
•
•
•
•
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It’s an organ
Made of cardiac muscle
Size of your fist
Has a right and left side
Has 4 chambers
Upper chambers are
called Atriums
• Lower chambers
Ventricles
• Flap like valves separate
chambers and don’t allow
blood to move backward
http://www.skepticmoney.com/wp-content/uploads/2012/02/1-humanheart.jpg
3D Animation of the Heart
• 3D Animation of the heart
• http://www.youtube.com/watch?v=NF68qhyf
coM
http://www.smartdraw.com/examples/view/blood+flow+through+the+
heart+of+the+cardiovascular+system/
The Flow of Blood Thought the Body
Blood Vessels
Blood Vessels
• Blood travels through
your body in hollow
tubes called blood
vessels.
• 3 types
• Artery
• Capillaries
• Veins
Arteries
• Carry blood away from
the heart.
• Arteries have a thick wall .
• Each heart beat pumps
blood into your arteries at
high pressure.
• This is your blood
pressure.
• Oxygen rich blood
Capillaries
• Is a tiny blood vessel
that allows Oxygen to
enter body cells and
Carbon Dioxide to leave
cells.
• Exchange is crucial for
cells life
Veins
• After leaving the
capillaries blood enters
the veins and is brought
back to heart.
• Oxygen poor blood
Review
• How does the human heart work?
• http://www.youtube.com/watch?v=H04d3rJC
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