1. System that transports materials around the body.
Circulatory System
System that transports materials around the body.

2. An airplane is a pickup/delivery system
The Circulatory System
is a pick up and delivery system
Picks Up: ?
Delivers: ?

3. Long thought to be the center of passion and love, the heart is only the world’s greatest ...
Pump!

4. About the size of a large fist, the heart is a muscle with
5 large blood vessels carrying blood to and from the body.
Major
Blood
Vessels
Muscle

5. The heart is divided into 4 chambers:
Left
Atrium
Right
Atrium
Left
Ventricle
Right
Ventricle

6. The right side receives dirty blood from the body and sends it to the lungs, kidneys, and liver(the cleaners).
The left side receives clean blood from the lungs and sends it to the body.

7. In between each atrium and its ventricle are one -way valves.
One-way valves also open out of the ventricles to blood vessels.

8. Your heart has been beating since before you were born and will beat until the day you die.
Blood flow of the Heart

9. because they only pump blood down to
Atria have thin walls
because they only pump blood down to
ventricles.
Ventricles have thick walls because they pump blood out of the heart.
Left ventricle pumps all over the body.
Right ventricle pumps to the lungs.

10. The heartbeat is controlled by electricity from the nervous system and hormones from the endocrine system.

11. carry blood throughout the body. Blood does not leave the vessels.
Blood Vessels are
...tubes that
carry blood throughout the body. Blood does not leave the vessels.

12. Types of Blood Vessels
Arteries- carries blood away from heart. Thick walls and have a pulse.
Veins- brings blood in to heart. Thin walls, but have one-way valves.

13. Blood Vessel Types(cont.)
Capillaries- very small, thin blood vessels. Oxygen, food, wastes, and other substances pass in and out of the capillaries. Every cell in your body touches a capillary!

14. 5 liters of blood continually pump around the 60,000 miles of blood vessels in your body, picking up and delivering your daily needs.

15. Blood, the fluid of life is really....

16. ... a clear yellowish liquid with red particles floating in it!

17. Blood is produced in bone marrow- the center of long bones

18. Parts of Blood
Plasma- clear, nonliving liquid part of blood. 55% of blood. Carries food, wastes, salt, and chemicals.
Plasma

19. Parts of Blood carry O2 and CO2. 43% of blood.
Red Blood Cells-
carry O2 and CO2.
43% of blood.
contains hemoglobin- iron substance that carries the O2 and CO2.
Red
Blood
Cells

20. Parts of Blood
White Blood Cells- fight infections. 1% of blood. larger cells with nucleus.
Platelets- start blood clotting. 1% of blood.

21. Blood Cells
Plasma
Red Blood
Cells
Platelets
WhiteBlood
Cells

22. Blood Types
There are 4 main types of blood: A, O, B and AB. What makes them different is the kinds of proteins found on the cell membrane of their red blood cells.
Why blood type is important?- Mixing the wrong types of blood together can cause clotting, health problems and possible death.

23. the Circulatory System...
... travels to all parts of the body carrying digested food, oxygen and other nutrients to our body cells. It also picks up wastes from the body cells.

24. Blood Donation

28. Blood Pressure
ex. 120/80

29. Heart Attack