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Blood - College Essays

Blood

Tell Me about Blood
Lucrezia Stoner
ITT, Strongsville

Tell Me about Blood

* A lower than normal hematocrit or anemia means that the percentage of red blood cells is below the lower limits of normal. It could be as a result of internal bleeding, nutritional problem or over hydration.

* When there is a bacterial infection, the hematocrit is raised. Lymphocytes are types of white blood cells. They are the body's primary immune defense and move through the lymph in response to antigens and pathogens. T-cells originate in the bone marrow and migrate to the thymus to mature; B-cells also originate in the bone marrow and migrate to the lymph tissues to mature.

* Erythropoiesis is the ...

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which the stomach secretes to facilitate erythrocyte maturation. Vitamin B12- also called the extrinsic factor, which interacts with the intrinsic factor. Iron- an essential component of hemoglobin (the protein complex within erythrocytes that binds with oxygen)

* A person with type O blood has no antigens so that person is a universal donor and their blood can be given to anyone without triggering their immune system.

* There are five main types of white blood cells. The WBC with a round nucleus surrounded by a blue halo of cytoplasm with no visible granules is a lymphocyte. It is a combatant in immune responses. The WBC which contains dense blue-purple granules that hide the nucleus is a basophil. It intensifies inflammatory reaction and is involved in hypersensitivity reactions. The WBC that has a U-shaped nucleus and a bluish, foamy cytoplasm with no visible granules is a monocyte. They engage in phagocytosis (engulfing) and cell debris clean up. WBC that contains small, ...

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PAPER DETAILS

Added: 2/12/2015 11:15:25 AM
Submitted By: cwgu3258
Category: Biology
Type: Premium Paper
Words: 545
Pages: 2

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