BLOOD Flashcards
How much blood in adults
5 liters (70ml/kg) in males 65ml/kg in females
Blood consists of…
Plasma, red blood cells, white blood cells, and platelets
Plasma
Watery fluid that accounts for more than half of the total blood volume. 92% water, 8% dissolved substances
Erythrocytes
Red blood cells. Carries oxygen to the cells. Propelled by plasma. Contain hemoglobin.
Hemoglobin
In red blood cells. Binds oxygen absorbed in the lungs.
Erythropoiesis
The process that makes red blood cells.
Microphages
Cells that protect the body against infection.
Bilirubin
RECYCLING PARTS OF HEMOGLOBIN. Leftover parts of the hemoglobin that are not destroyed, is converted into bilirubin… Which undergoes further metabolism in the liver.
Antigens
Proteins recognized by the immune system.
Antibodies
Proteins that react with antigens .
Blood typing
Classified based on the presence or absence of specific antigens. Four blood types.
Anemia
Decrease in the he number of red blood cells.
Erythroblastosis fetalis
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.
Leukocytes
White blood cells
Fight infections.
Larger than red blood cells
Diapedesis
Allows white blood cells (leukocytes) to leave the blood vessels and go to the tissues where they may be needed.