1. DO NOW: What are the three types of blood vessels and their functions/jobs?

3.  makes up ~8% of your body’s total mass  has four important functions 1) carries oxygen and carbon dioxide to and from the lungs 2) carries waste products to kidneys to be removed

4.  3. ransports nutrients and other substances to your body cells 4. cells and molecules in blood fight infections and help heal wounds

5.  Plasma  liquid part of blood  is mostly water  makes up more than ½ the volume of blood

6.  Red blood cells  contain hemoglobin, which is a molecule that carries oxygen and carbon dioxide  have a life span of ~120 days  are made in the center of long bones

7.  White blood cells  fight bacteria, viruses and other invaders of your body your body reacts to invaders by increasing the number of white blood cells  have a life span of a few days to many months

8.  Platelets  Irregular shaped cell fragments that help clot blood  have a life span of 5-9 days

9. When you cut yourself: 1. Platelets stick to the wound and release chemicals called clotting factors. 2. Clotting factors cause threadlike fibers called fibrin to form a sticky net. 3. The net traps escaping blood cells and plasma, and forms a clot to stop more blood from escaping. 4. Clot becomes hard and skin cells begin the repair process under the scab. 5. Eventually, the scab is lifted off.

10. DO NOW: What are the four components of blood? What does each part do?

11.  genetic condition in which a person’s plasma lacks one of the clotting factors that begins the clotting process

12.  there are four types of blood: A, B, AB, O  each blood type has specific antibodies in it’s plasma  Antibodies: proteins that destroy substances that do not belong in or are not part of your body

13.  because of antibodies, certain blood types cannot be mixed, which limits the blood transfusion possibilities

14. TypeABABO A B O

15. TypeCan ReceiveCan Donate To A B AB O

16.  a chemical identification tag in blood, which is inherited  If a Rh factor is on the red blood cells, a person’s blood is called Rh-positive  If the Rh factor is not present, the person’s blood is Rh-negative **Rh-positive and Rh-negative blood cannot be mixed**

17.  Anemia  body tissues cannot get enough oxygen and are unable to carry on their usual activities  Leukemia  disease that produces immature white blood cells that don’t fight infections well