Flashcards in BLOOD Deck (27):
Blood consists of...
Plasma, red blood cells, white blood cells, and platelets
How much blood in adults
5 liters (70ml/kg) in males
65ml/kg in females
Watery fluid that accounts for more than half of the total blood volume. 92% water, 8% dissolved substances
Red blood cells. Carries oxygen to the cells. Propelled by plasma. Contain hemoglobin.
In red blood cells. Binds oxygen absorbed in the lungs.
The process that makes red blood cells.
Cells that protect the body against infection.
RECYCLING PARTS OF HEMOGLOBIN. Leftover parts of the hemoglobin that are not destroyed, is converted into bilirubin... Which undergoes further metabolism in the liver.
Proteins recognized by the immune system.
Proteins that react with antigens .
Classified based on the presence or absence of specific antigens. Four blood types.
Decrease in the he number of red blood cells.
During late pregnancy and delivery... The mother and fetus may have different Rh positives/negatives. Mothers body's will produce antibodies to the antigens, which may enter the fetal circulation and destroy the fetus red blood cells.
White blood cells
Larger than red blood cells
Allows white blood cells (leukocytes) to leave the blood vessels and go to the tissues where they may be needed.
Two types of leukocytes...?
Most common type of granulocytes.
Polymorphonuclear cells (polys).
Function in allergic responses.
Play a role in allergic and inflammatory reactions.
Contain large amounts of histamine .
Substance that increases tissue inflammation.
Substance that inhibits blood clotting
Smallest of the Agranulocytes.
Most originate in the lymph nodes.
Respond to infections and are thence first line of defense in the inflammatory process
Cells within the blood.
Essential for clot formation.
Cessation of bleeding... The process in he hitch bleeding stops and a final clot is formed.
Binds to the platelet plug ( aggregated platelets cause an initial plug to stop bleeding) to create the final mature clot.