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What does coagulation do for the platelet plug? - reinforces platelet plug with fibrin threads

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What must happen before the platelets will stick to the walls of blood vessels?
-  there has to be collagen fibers that are exposed when vessel is damaged
What role does ADP play in platelet plug formation? -causes more platelets to stick and release their contents

What is this process considered a positive feedback cycle?  - As the platelet bind to the site of injury more chemicals are released to further stimulate platelet aggregation

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How does vasoconstriction help in the process of hemostasis?
- Can significantly reduce blood flow until other mechanisms can kick in

What are some things that could trigger it?
- Direct injury to vasc. smooth muscle
- Chemicals released by endothelial cells and platelets
- pain reflexes

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What is it? - fast series of reactions for stoppage of bleeding

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What type of Agranulocyte specializes in fighting against tumors?

- T lymphocytes

What type of Agranulocyte differentiates into macrophages?

- monocytes

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Which type of granulocyte would be found in inflamed sites of the body?
- basophils

If a person had a tapeworm within their digestive system, which granulocyte would release digestive enzymes on the surface of the worm.
- eosinophils

Which granulocytes accounts for 50-70% of the white blood cells?
- neutrophils

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Indetify each type of Luekocyte in the diagram below  (type the name above each cell.)

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Indetify each type of Luekocyte in the diagram below  (type the name above each cell.)

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neutrophils eosinophils basophils monocytes lymphocytes

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Primary Function: form temporary platelet plug that helps seal breaks in blood vessels

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Sickle Cell anemia vs iron deficiency anemia
- sickle cell: caused by mutation, a sickle shaped,
- iron def.: impairs O2 absorption, not sickle shaped
Which type of anemia is caused by a mutation?
- sickle cell
Why does iron deficiency cause symptoms?
- because of the lack of oxygen absorption
Does a person with iron deficiency have cells that are sickle in shape? - no

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Leukocytes (also known as White blood cells)  

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Leukocytes (also known as White blood cells)  

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Why is the leukocyte the only formed element that is considered a "complete cell"? - they contain nuclei and organelles

Primary function of a Leukocyte: defense against diseases

What is the difference between Granulocytes and Agranulocytes? Agranulocytes  lack visible cytoplasmic granules while granulocytes are large and shorter lived than RBCs and contain lobed nuclei

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Erythrocytes (also known as red blood cells )

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Erythrocytes (also known as red blood cells )

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Primary function:

- respiratory gas transport
- hemoglobin binds to O2

Describe how the cell's shape and lack of mitochondria assist the cell in effectively carrying its primary function.

the shape ultimately helps with the transportation of oxygen, since they don't have a mitochondria, they do not consume the O2 they transport

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                                 Formed Elements 

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                                 Formed Elements 

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- Provide 3 examples of solutes in plasma.
1. Nutrients

2. Hormones

3. Anti bodies

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Made up of _plasma_________ and __formed elements_______________.