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68C Ch.12 Ph.1 T.5

Hole's Essentials of A&P Chapter 12: Blood

Describe the functions related to blood and blood components Transport biochemicals throughout the body, protect us against disease, plugs damaged vessels , distribute heat throughout body
Identify the major components of blood Erythrocytes(RBC) Leukocytes (WBC) Platelets(Thrombocytes) Plasma
Erythrocyte Biconcave disk used to transport gases, no nucleus, shape increases surface area
Red blood cell production is due to the release of Erythropoietin
Vitamins necessary for the production of RBC's (2) Vitamin B12 Folic Acid
Anemia Too few red blood cell's= too few hemoglobin results in
Hemoglobin oxygen carrying portion of blood, iron is a major component
Leukocytes cells that protect against disease, phagocytize bacterial cells
Name the granulocytes and agranulocytes Neutrophils, Eosinophils, Basophils, Monocytes, Lymphocytes
DIFF(differential white blood cell count) test that list the percentages of types of leukocytes in a blood sample
Neutrophils increase in bacterial infections, inflammation, allergic reactions
Eosinophils increase during parasitic infections
Basophils Cytoplasmic granules contain heparin and other granules histamine
Lymphocyte important in immunity
Monocyte Largest leukocyte, may leave the circulatory system and go to tissues at which point it becomes a macrophage
Platelets (Thrombocytes) incomplete cells or portions of cells, clump together at the site of hemorrhage
Name the 3 Plasma proteins Albumin Globulin Fibrinogen
Macrophage phagocytize and destroy damaged red blood cells primarily in the liver and spleen
Name the actions that help to limit or prevent blood loss Blood vessel spasm Platelet plug formation Blood coagulation
What happens during a vasospasm smooth muscles in the blood vessel wall contract causing blood loss to lessen immediately
Describe the process of coagulation within a blood vessel Prothrombin converted into thrombin, thrombin breaks fibrinogen into fibrin strands, Fibrin strands form mesh-like structure, RBCs and platelets adhere to mesh, form clot
Describe the difference between a thrombus and embolus thrombus remains stationary, while an embolus is a dislodged particle carried away by blood flow
Antigens proteins found on the RBC, stimulate body to make antibodies
Created by: ajwildasin30
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