Archives for November 2006
Blood Transfusions
A transfusion is a means of giving blood to another person. It is recommended most often in an emergency, when someone has lost a great deal of blood due to an accident or serious illness. We mentioned in another part of this book that children have any¬where from three to four quarts of blood. If [...]
What Blood Is Made Of
Everyone has blood inside his body, and when someone cuts himself, a bit of it runs out. This nothing to be frightened about, since each of us has about three or more quarts of blood.
Blood is an interesting fluid. It is composed of red blood cells, white blood cells, little specks of material called platelets, [...]
How heart and Blood Vessels Work
Every human being has a heart that pumps blood throughout his body. This is absolutely necessary, because blood carries the oxygen taken from the lungs, and all the digested foods that have been eaten, to the tissues. Without oxygen, nourishing sugars, and proteins and fats, our organs could not possibly work or live.
Did you ever [...]