2. The 3 main parts of The Circulatory system The Heart The Heart The Blood Vessels The Blood Vessels Blood Blood

4. Parts of The Heart The Atria -Receiving Chambers The Ventricles -Pumping Chambers The Valves -Controls Flow The Septum -Divides the Heart

6. Types of Blood Vessels Arteries Arteries -Carry blood away from the Heart -Carry blood away from the Heart -The Aorta is the largest artery -The Aorta is the largest artery Veins Veins -Carry blood away from the Heart -Carry blood away from the Heart -Veins contain valves -Veins contain valves -The Vena Cava is the largest vein -The Vena Cava is the largest vein Capillaries Capillaries -Known as the “Distribution Pipes” -Known as the “Distribution Pipes”

8. The Composition of Blood The Plasma (Fluid) makes up 55% of the blood volume. The Plasma (Fluid) makes up 55% of the blood volume. The Solids (Cells) make up 45% of the blood volume. The Solids (Cells) make up 45% of the blood volume.

9. Blood Plasma 97% Water 97% Water Other 3% Other 3% -Antibodies and Proteins -Antibodies and Proteins - Nutrients and Wastes - Nutrients and Wastes

10. Blood Solids Red Blood Cells Red Blood Cells -Carry oxygen -Carry oxygen -Contain Hemoglobin -Contain Hemoglobin White Blood Cells White Blood Cells -Attack bacteria & other invaders -Attack bacteria & other invaders Platelets Platelets -Control the blood clotting process -Control the blood clotting process

11. Credits Graphics courtesy of Crystalcafe.com & The Franklin Institute online. Graphics courtesy of Crystalcafe.com & The Franklin Institute online. Presentation by Steve Kennette Presentation by Steve Kennette Thanks to: Thanks to: Spartanburg School District #5 Spartanburg School District #5Spartanburg School District #5Spartanburg School District #5 Duncan, S. C. Duncan, S. C.