1. The Circulatory System
How our
body transports materials.

2. Function of the Circulatory System
To transport oxygen, nutrients, wastes, and other substances throughout the body.

3. 3 Main Parts of the Circulatory System
Blood Cells
Blood Vessels
The Heart

4. Blood Cells: Things that make up the blood.
Red Blood Cells: carry Oxygen (no nucleus)
White Blood Cells: fight infection
Platelets: Clot Blood
Plasma: Liquid component

5. Blood Vessels: Things that carry the blood.
Arteries: carry blood away from the heart.
Usually have Oxygen (not in pulmonary)
Veins: carry blood toward the heart.
Usually don’t have Oxygen (not in pulmonary)
Valves prevent backflow
Capillaries: materials are exchanged

6. Valves in Veins

7. Types of Circulation Pulmonary Circulation: Systemic Circulation:
Pulmonary = Lungs
Pulmonary Circulation:
Right side of the Heart
No Oxygen, a lot of Carbon Dioxide in Blood
Takes blood from Heart to Lungs
Systemic Circulation:
Left side of the Heart
A lot of Oxygen, no Carbon Dioxide in Blood
Takes blood from Heart to rest of body

8. Pulmonary & Systemic

9. The Human Heart
Red Blood Cell Cartoon
Heart Song