Functions of the Circulatory System
[Pages:18]Functions of the Circulatory System
? Carry oxygen from lungs to tissues ? Carry carbon dioxide from tissues to lungs thereby aiding in the exchange of gases ? Helps carry nutrients to cells ? Helps to fight against infections (White Blood Cells) ? Helps blood clot or stop bleeding (Platelets)
BrainPopCirculatory System
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The Circulatory System
Magic School Bus"Works Out" Circulatory System School House Rock "Do the Circulation"
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Kids HealthCardiovascular System Bill Nye on Blood and CirculationPart 1
Heart: Provides the force to "push" the blood throughout the body.
Arteries: Carry blood away from the heart to the rest of the body.
Veins: Carry blood to the heart from the rest of the body.
Capillaries: The smallest blood vessels. Connect veins and arteries. Gas exchange takes place here.
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O2 CO2 Gas Exchange
In the lungs there are tiny airsacs called alveoli. The capillaries "hug" the alveoli. The alveoli and capillaries allow what is called the gas exchange. Oxygen is picked up to be delivered to the rest of the body and carbon dioxide is dropped off to be exhaled.
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Veins
Veins and arteries The highway of the body
As the blood leaves the heart, either as it travels to the lungs to pick up oxygen, or to the body to drop off
the oxygen, it travels through the arteries.
Artiers - Away
When the blood heads to the heart, it is traveling through
the veins.
Veins - To
Circulatory System Video
Arteries
Parts of the Heart Detailed Animation
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Bill Nye on Blood and CirculationPart 2
Blood Vessels:
1. Arteries 2. Veins 3. Capillaries
Blood Cells:
1. Red Blood Cells
2. White Blood Cells 3. Platelets
BrainPopBlood
Function
1. Carry blood away from the heart
2. Carry blood to the heart. 3. Smallest blood vessels.
Connect the two. Gas exchange takes place here.
1. Carry oxygen and glucose to the cells and carbon dioxide and water away.
2. Disease fighters 3. Clot blood
plasma is the liquid portion of blood
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Blood Cells
Red blood cells are in charge of carrying nutrients and oxygen to the body. Platelets' job is to clot your blood and form a scab when you cut yourself.
White blood cells help fight infections when you are sick.
Bill Nye on Blood and Circulation Part 3
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