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The 3 main parts of The
Circulatory system

The Heart

The Blood Vessels

Blood
Parts of The Heart




The Atria
-Receiving Chambers
The Ventricles
-Pumping Chambers
The Valves
-Controls Flow
The Septum
-Divides the Heart
Types of Blood Vessels



Arteries
-Carry blood away from the Heart
-The Aorta is the largest artery
Veins
-Carry blood away from the Heart
-Veins contain valves
-The Vena Cava is the largest vein
Capillaries
-Known as the “Distribution Pipes”
The Composition of Blood

The Plasma (Fluid)
makes up 55% of the
blood volume.
Blood Composition
60
50

The Solids (Cells)
make up 45% of the
blood volume.
40
30
20
10
0
Plasma
Solids
Blood Plasma
97% Water
 Other 3%
-Antibodies and Proteins
- Nutrients and Wastes

Blood Solids
Red Blood Cells
-Carry oxygen
-Contain Hemoglobin
 White Blood Cells
-Attack bacteria & other invaders
 Platelets
-Control the blood clotting process

Credits

Graphics courtesy of Crystalcafe.com &
The Franklin Institute online.

Presentation by Steve Kennette
Thanks to:
Spartanburg School District #5
Duncan, S. C.