transport
DESCRIPTION
Transport. Vocabulary. Agglutin -: to glue together Embol -: stopper -stasis: halt - osis : abnormal Bil -: bile Erythr -: red Thromb -: clot Hema - or hemo -: blood - poie : to produce Leuko - white. Blood. Hemoglobin : protein that carries oxygen in the blood. - PowerPoint PPT PresentationTRANSCRIPT
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Transport
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Vocabulary
• Agglutin-: to glue together• Embol-: stopper• -stasis: halt• -osis: abnormal• Bil-: bile• Erythr-: red• Thromb-: clot• Hema- or hemo-: blood • -poie: to produce• Leuko- white
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Blood • Hemoglobin: protein that
carries oxygen in the blood
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Red Blood Cell Count
• RBC count (RBCC): the number of red blood cells in a microliter of blood• affects the amount of oxygen blood can carry
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Red blood cell formation
• Erythropoiesis: the formation of new red blood cells inside bone marrow• Erythropoietin: a hormone that controls the rate of
RBC formation• Released by the kidneys and liver• Stimulated by low oxygen levels in the blood• Diet: vitamin B, folic acid, iron, and hemoglobin all
affect erythropoiesis
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White Blood Cells
• Leukocytes: white blood cells• protect against infection• phagocytize bacterial cells• Produce antibodies that destroy foreign particles• Diapedesis: WBC’s leaving the blood stream to
carry out their functions
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Types of WBC’s
• Neutrophils and Monocytes: leave the blood stream and become macrophages that destroy bacteria, dead cells and other debris• Eosinophils: kill certain parasites and control
inflammation and allergic reactions• Basophils: migrate to damaged tissues and inhibit
blood clotting • release histamines which causes inflammation• Lymphocytes: important in immunity• WBC count: Increased numbers of WBC’s are an
indication of infection or disease
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Blood Platelets
• Thrombocytes: (platelets) cell fragments that are made in the red bone marrow• Help to clot broken blood vessels
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Plasma proteins
• Albumins: help regulate water movement between blood and tissues• Globulins: transport lipids and fat-soluble vitamins
and make antibodies• Fibrinogen: plays a key role in blood coagulation
and electrolyte balance
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Gases and Nutrients
• Gases: Oxygen, carbon dioxide and nitrogen• Nutrients: amino acids, sugars, nucleotides and
lipids• Non-protein substances: urea, uric acid, creatine• Electrolytes: sodium, calcium, magnesium,
chloride, bicarbonate, sulfate and phosphate
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Hemostasis
• Hemostasis: the stoppage of bleeding• Blood Vessel Spasm: contraction of blood vessels
to reduce blood loss when blood vessels are damaged• Platelet plug formation: • Serotonin is released to contract blood vessels• Platelets stick together to form a plug to stop the
bleeding
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Blood coagulation
• Coagulation: blood clot formation• Fibrin: threads or fibers of clotting proteins• Prothrombin: gets converted into thrombin• Thrombin: a protein that catalyzes the joining of
fibrin proteins• Serum: blood plasma minus the clotting factors
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Blood Clotting
• Thrombus: a blood clot abnormally forming in a blood vessel• Embolus: a clot that breaks loose and is carried
away by the blood• Agglutination: the clumping of red blood cells
following a transfusion
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ABO Blood Group
• Based on the presence of antigens A and B on the surface of RBC’s
• Antigens: molecules on the surface of red blood cells that react with antibodies• Antibodies: react with their same antigen and clump
red blood cells
Blood type Antigen Antibody
A A B
B B A
AB A and B None
O None Both A and B
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Rh Blood Groups
• Rh Blood groups: • Antigen D present = Rh +• Antigen D not present = Rh –
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Write the blood types you can receive if you have each of the following blood types