1. YOUR CIRCULATORY SYSTEM
How does it work?
Why does a doctor check your pulse and blood pressure?
What is your blood type and why is it important?

2. The Transport System CIRCULATORY SYSTEM Your body’s transport system.
Keeps the body working well.
By delivering essential materials to body cells and removing waste materials from the cells.
THIS BODY SYSTEM IS ALSO KNOWN AS THE CARDIOVASCULAR SYSTEM.

3. How the Circulatory System works
Blood carries substances through Circulatory System
Organs serve as transfer stations
Blood picks up nutrients and delivers them to cells
Wastes and removes them from body

4. Parts of the Circulatory System
Heart
Blood Vessels
Blood

5. HEART Is a pump, that moves blood in 2 major pathways
Pulmonary Circulation
Systematic Circulation

6. HEART The heart is divided into 4 chambers
Each upper chamber is called ATRIUM
Each lower chamber is called VENTRICLE
* VALVES open and close to control the flow of blood

7. Pulmonary Arteries
Carry blood containing carbon dioxide from your heart to your lungs.

8. Pulmonary Veins
Carry blood containing oxygen from your lungs to your heart.

9. Blood A mixture of solids in a large amount of liquid called plasma
Is about 92% water
The solids are
Red blood cells
White blood cells
Platelets

10. Parts of Blood
Red blood cells – carry oxygen to the cells and carbon dioxide away from the cells.
White blood cells – help fight disease and infection by attacking germs that enter the body
Platelets – help blood clot, which seals cuts and prevents excess blood loss from a wound

11. More about Blood Blood is essential to life
Your blood is not the same as everyone else’s
Blood transfusions
Blood must match
Mixing blood could have serious side effects
High fevers, difficulty breathing, and even death

12. Blood Types A B AB O

13. Positive or Negative Blood
Rh +
Blood does contain Rh factor
Rh –
Blood does not contain Rh factor

14. Blood Banks People of age can donate blood
Only people in good health can donate
A new needle is used every time blood is drawn
All donated blood is tested for disease

15. Blood Vessels
Over 80,000 miles of blood vessels move your blood throughout your body
Three types of blood vessels
1. Arteries
2. Veins
3. Capillaries

16. Carry blood away from the heart
Arteries
Carry blood away from the heart

17. Blood vessels that carry blood from the body back to the heart
Veins
Blood vessels that carry blood from the body back to the heart

18. Capillaries
Tiny tubes that carry blood from the arteries to the body’s cells and from cells to the veins

19. Blood Pressure
As blood moves through your body, it exerts pressure against the walls of blood vessels
Sphygmomanometer – instrument that measures blood pressure

20. Cardiovascular Disorders
Stroke
Heart attack
Arteriosclerosis
Hypertension
High blood pressure
Anemia
Sickle-cell anemia
Mononucleosis
Leukemia
Hemophilla

21. Cardiovascular Disorders
Open to page 303
Write the descriptions to each disorder in your notes