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Blood Disorders: Overview

National Library of Medicine (NLM)

(also called Hematologic diseases)

Your blood is living tissue made up of liquid and solids. The liquid part, called plasma, is made of water, salts and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells and platelets.

Red blood cells deliver oxygen from your lungs to your tissues and organs. White blood cells fight infection and are part of your body’s defense system. Platelets help blood to clot. Bone marrow, the spongy material inside your bones, makes new blood cells. Blood cells constantly die and your body makes new ones. Red blood cells live about 120 days, platelets 6 days and white cells less than a day.

There are many types of blood disorders, including: bleeding disorders, hemophilia and anemia. If you lose blood, you may need a transfusion.


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  • 0821102252_1__max50

    charleneswain

    almost 7 years ago

    1058 comments

    Thank you for this information. We will be discussing this subject next week.

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