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A&P Ex. 41
Exercise 41 - Blood Cells
Question | Answer |
---|---|
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. |