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A&P Ex. 41

Exercise 41 - Blood Cells

What is blood? Type of connective tissue whose cells are suspended in a liquid extracellular matrix called plasma
What is plasma composed of? water, proteins, nutrients, electrolytes, hormones, wastes, and gases
Where do erythrocytes, leukocytes, and some formed platelets produced? Red Bone Marrow
Brief description on Red Blood Cells. Also called erythrocytes. Contain hemoglobin. Transport gases between body cells and lungs.
Brief description on White Blood Cells. Also called leukocytes. Defend the body against infections.
Brief description on platelets. Also called thrombocytes. Play an important role in hemostasis (the stoppage of bleeding.
What is the function of erythrocytes? Transports oxygen and carbon dioxide.
What is the function of leukocytes? Destroys pathogenic microorganisms and parasites, removes worn cells, and provides immunity.
What type of cells are neutrophil, eosinophil, and basophil? Granulocytes - they HAVE granular cytoplasm.
What type of cells are monocytes, lymphocytes, and platelets? Agranulocytes - they LACK granular cytoplasm
What is the function of neutrophil? Phagocytizes bacteria
What is the function of eosinophil? Destroys parasites and helps control inflammation and allergic reactions.
What is the function of basophil? Release heparin (an anticoagulant) and histamine (a blood vessel dilator)
What is the function of monocyte? Phagocytizes dead or dying cells and microorganisms
What is the function of lymphocytes? Provides immunity
What is the function of platelet (thrombocyte)? Helps control blood loss from injured blood vessels; needed for blood clotting.
What is the normal value of neutrophil, and what would elevated levels indicate? Normal value is 54-62; Elevated Levels may indicate bacterial infection and stress
What is the normal value of lymphocyte and what would elevated levels indicate? Normal value is 25-33; Elevated Levels may indicate mononucleosis, whooping cough, viral infections
What is the normal value of monocytes and what would elevated levels indicate? Normal value if 3-9; Elevated levels may indicated malaria, tuberculosis, and fungal infections
What is the normal value of eosinophil and what would elevated levels indicate? Normal value is 1-3; elevated levels may indicate allergic reactions, autoimmune diseases, parasitic worms
What is the normal value of basophil and what would elevated levels indicate? Normal value is <1; Elevated levels may indicate cancers, chicken pox, and hypothyroidism
Why do doctors perform a differential white blood cell count? To determine the percentage of each of the various types of white blood cells present in a blood sample. Test is useful because relative proportions of white blood cells may change in particular diseases.
Created by: elizabethcosio



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