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Module 9 A&P

Blood

TermDefinition
Plasma Clear extracellular matrix, accounts for 55% of blood
Formed elements Red blood cells account for most of the formed elements
Hematocrit percentage of red blood cells in a sample of blood; reveals how much oxygen the blood can carry
Viscosity term used to describe the thickness or stickiness of blood
Hemopoiesis Production of blood
two types of hemopoetic tissue Red bone marrow and lymphatic tissue
red bone marrow produces all types of blood cells
lymphatic tissue produces lymphocytes
Red blood cells (erythrocytes) deliver oxygen to blood cells, remove carbon dioxide
Hemoglobin a red pigment that gives blood its color
iron oxygen carrying component of hemoglobin
red blood cell cycle life 02 levels drop, kidneys secrete erythroportin, bone marrow creates erythrocytes, reticulocytes released, 02 rises,EPO and RBC go down
Reticulocytes immature RBCs
Hemoglobin globin and heme
globin amino acids
heme iron and bilirubin
iron is transported to bone marrow... to create new hemoglobin
when destruction of red blood cells become excessive (hemolysis)... the body cant readily assimilate the increased amounts of bilirubin causing jaundice
White blood cells called leukocytes, fewest of elements formed
Eosinophils involved in allergenic reactions, elevated in allergic reactions
Agranulocytes has longestest life span (can live years),
Lymphocytes responsible for long term immunity
leukemia extremely high WBC
Leukopenia Low WBC
Platelets thrombocytes
steps of hemostasis vascular spasm, formation of platelet plug, formation of blood clot
Hemostasis formation of blood clot
synthesis of clotting factors requires... vitamin K
Fibrinolysis the process of clot dissolution
agglutinate RBC clump together cause by reaction
Majority of americans have RH positive blood
Created by: Kylee_cheyenne