Download Circulatory System - Madison County Schools

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Transports food/ nutrients, oxygen, and
chemicals to the cells.
Removes Carbon Dioxide and waste from the
cells.
Transports cells to attack pathogens.
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The muscle that transports the
needed materials throughout
the body.
Pumps about 5 liters every
minute.
Nerve tissue on your heart
controls heart rhythm
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Heart
The tissue that separates the heart the two sides is
the Septum.
Right upper- Right Atrium low in Oxygen comes
from the body
Flows down to the right Ventricle through a valve
(does not allow back flow).
Blood moves to lungs to exchange Carbon Dioxide
for Oxygen (Diffusion) at the Alveoli.
Left Atrium receives Oxygen rich blood from lungs
Passes through valve to Left Ventricle and out to
body
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Arteries (Bright Red)
Blood vessels that carry blood away
Largest Artery is the Aorta
Branch into small, flexible arteries then to
capillaries.
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Veins- have valves to prevent back flow.
Dark Red and low in oxygen
Blood is pushed back to the heart
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Capillaries
Very thin-walled to allow diffusion
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Red blood cells pass single file
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Function to give up oxygen and take waste
away
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Blood
Contains four component
Red blood cells, White blood cells, platelets,
and plasma
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Plasma
Yellowish fluid
90% water , 10% protein, fats, salts, and gases
Regulates amount of water entering and
leaving cell
Antibodies fight off bacteria, viruses, and other
substances
Contains clotting factors
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Red Blood Cells
Produced in Bone marrow
and live about 120 days
2 million die per second
Contains Iron protein
(Hemoglobin)attaches to
oxygen easily
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White Blood cells
Larger than red blood cells and last
months or years
Develop in Bone marrow
Function is to protect the body from
pathogen by surrounding it and
digesting it.
Produces antibodies
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Platelets
Collects around cuts
Produces fibrin that burst apart to form clotting
agents
Catches blood cells and plasma to create
clot/scab
They are fragments of cells that are produced
in the bone marrow
Live 10 days