1. AIM: Sample Do now: 1. What is a mineral?
2. If you put different types of mineral, what are you creating?

2. The Truth About Your Heart

3. The Circulatory System
The Circulatory system is
transport (high way) system of body
The system delivers nutrients to the cells of body and remove waste products from the cells of body.

4. The parts of the circulatory system are
BLOOD
HEART
BLOOD VESSELS

5. The Heart Located near the center of your chest
muscular organ that pumps blood to the body.
About the size of your fist

6. How the heart actually pumps blood
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7. The Heart
The heart has a total of
4 chambers:
2 ventricles& 2 atriums

9. Blood Vessels
As blood moves through the circulatory system it moves through 3 types of blood vessels:
Arteries
Capillaries
Veins

10. Arteries
Large vessels
Carry blood AWAY from heart to cells of body

11. Capillaries Smallest blood vessels
Walls are only one cell thick and very narrow.

12. Veins Medium to Large sized vessels
Carry blood BACK TO the heart from cells of body

14. Roles of Blood blood is the main circulating fluid in the human body.
Blood transports materials throughout the body inside blood vessels.
It carries oxygen and foods to all parts of the body
Blood protects the body against the diseases by destroying germs.

15. Blood Inside of the blood…. Red Blood Cells White Blood Cells
Platelets
Plasma

16. Blood Plasma Straw colored 90% water
10% dissolved gases, salts, nutrients, enzymes, hormones, wastes, and proteins.

17. Blood Red Blood Cells Most numerous type Transport oxygen
Get color from hemoglobin
Disk shaped
Made in red bone marrow
Circulate for 120 days

18. Blood White Blood Cells
Guard against infection, fight parasites, and attack bacteria
Number of WBC’s increases when body is fighting
Lymphocytes produce antibodies which fight pathogens and remember them

19. Blood Plasma proteins 3 Types: Albumins, globulins and fibrinogen.
Albumins and Globulins- transport substances such as fatty acids, hormones and vitamins.
Fibrinogen- Responsible for blood’s ability to clot

20. Blood Platelets Aid the body in clotting Small fragments
Stick to edges of broken blood cell and secrete clotting factor to help form clot.

21. Blood Clotting Problems
Hemophelia
Genetic disorder that disrupts clotting
People must be very careful to avoid injury
Can be treated by injecting extracts that contain the missing clotting factor.