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Human transport (anna) - Coggle Diagram
Human transport (anna)
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arteries :blood vessels that carry blood away from the heart
veins :blood vessels that carry blood towards the heart
transport blood in human body , no exchange of substances in blood vessels
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valves in veins ensure blood flows in one direction, allow blood return to heart from all parts of body
capillaries : thin fragile, one-cell thick
allow exchange of substances: oxygen , carbon dioxide, nutrients and waste substances, between blood and body cells.
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THE HEART
right side
pulmonary artery
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lungs
thick, high pressure, normal straw
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left side
aorta(main artery)
pulmonary vein
left atrium
valve
left ventricle
bigger muscular wall
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capillary
blood flow slow, blood pressure low
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