October 15, 2002

Past Episodes

Blood Types
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Clipart of arteries, veins and the heart
anemia - a blood diseases that is characterized by an abnormally low number of red blood cells or low levels of hemoglobin
aorta - the main artery that carries blood away from the heart
artery - a tube that carries blood away from your heart to the rest of the body

atrium - one of the hollow chambers of the heart

blood -a fluid found in humans and other animals which provides nutrients and oxygen to all parts of the body, carries away waste, and helps fight disease.
blood pressure - the measure of how hard blood is pushing against the walls of your arteries
blood vessels - the tubes that carry blood around the body: arteries, capillaries, veins

blood type - one of 4 types of red blood cells (A, B, AB, O).

          A blood type                                   B blood type                                    AB blood type                             O blood type

bone marrow - a soft reddish substance inside some bones that helps make blood cells.
capillary - a tiny, thin-walled blood tube that connects small arteries ( arterioles ) and small veins ( venules ) to form a network throughout the body.
circulatory system - the body system that is responsible for the internal movement of blood throughout the body. Blood, the heart, blood vessels and the lungs form this system. There are 3 kinds of circulation: systemic, pulmonary, and coronary.
clot - a sticky mass that stops blood flow
coronary circulation - the system of blood vessels that supply blood to the heart muscle
fibrin - fibrinogen is transformed into long, sticky threads of fibrin that help form blood clots
heart - the organ that pumps your blood around your body
heart rate - the number of times your heart beats in a minute
hema - from the Greek word haimo meaning blood
hematology - the study of blood
hemophilia - a genetic blood disorder in which clotting does not easily occur, resulting in uncontrolled bleeding from minor injuries.
hemoglobin - a protein in red blood cells that carries iron
leukemia - a cancer of the blood system in which excess immature, white blood cells are produced.
lymph glands - special places in the body that make some white blood cells,and filter out and destroy bacteria
plasma - the straw-colored watery part of blood that carries nutrients wastes, and blood cells.
platelet - a tiny, colorless disk -shaped part of your blood that helps stop bleeding
pulmonary circulation - in which blood goes from the heart to the lungs where it exchanges carbon dioxide for oxygen, then returns to the heart before it is pumped to the rest of the body.
C hecking your pulse
- the beating of your heart and arteries that you can feel at your wrists, at the side of your neck, at the back of your knees and a few other places on your body
red blood cell - a saucer-shaped cell in the blood that carries oxygen to all parts of the body
sphygmomanometer - (SFIG-moe-muh-NOM-e-ter) an instrument that measures blood.
spleen - an organ in the body that makes some white blood cells and red blood cells. It also destroys worn-out red blood cells.
  Stethoscope stethoscope - an instrument used to listen to sounds from the heart and lungs.
systemic circulation - circulation of blood to all parts of the body except the lungs and the heart.
vein - a tube that returns blood to the heart from the rest of the body
ventricle - one of two spaces in the bottom part of the heart that pump blood out of the heart
white blood cell - a blood cell that does not contain hemoglobin. It protects the body against invading viruses, bacteria, fungi, and parasites
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