Why Do We Have Blood?
Episode 1 of 5
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Blood is that red liquid that flows through your body and each of us have about 9 - 12 pints in us on average. But what does it do for your body and what is it made of exactly?
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Sources:
Blood Facts And Statistics:
http://www.redcrossblood.org/learn-ab...
"Every two seconds someone in the U.S. needs blood. Approximately 36,000 units of red blood cells are needed every day in the U.S."
Sickle Cell Anemia:
http://www.nytimes.com/health/guides/...
"Sickle cell disease (also called sickle cell anemia) is an inherited blood disorder that affects red blood cells."
What Are White Blood Cells?:
https://www.urmc.rochester.edu/encycl...
"White blood cells are an important component of your blood system, which is also made up of red blood cells, platelets, and plasma."
Basophils:
http://www.ncbi.nlm.nih.gov/pubmedhea...
"A type of immune cell that has granules (small particles) with enzymes that are released during allergic reactions and asthma. A basophil is a type of white blood cell and a type of granulocyte."
CD4 Count (Or T-Cell Count):
http://www.hiv.va.gov/patient/diagnos...
"The CD4 count is like a snapshot of how well your immune system is functioning. CD4 cells (also known as CD4+ T cells) are white blood cells that fight infection."
Innate Immunity: The First Line Of Defence:
http://blogs.scientificamerican.com/l...
"The very first line of defence against any invasion of the human body is a set of physical barriers between the inside of the body and the outer world."
Blood Basics:
http://www.hematology.org/Patients/Ba...
"Blood is a specialized body fluid. It has four main components: plasma, red blood cells, white blood cells, and platelets."
Understanding How Blood Works:
http://www.hog.org/handbook/section/1...
"Our blood has two main parts - blood cells and plasma. The plasma is the liquid part of the blood. It is mainly water."
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