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43 Cards in this Set
- Front
- Back
Describe a lymphocyte under a microscope.
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there are two types: small are T cells and B cells and large are plasma cells; stained with Wright's stain, dark purple nucleus and pale blue cytoplasm
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RBCs are formed in the _______ .
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red bone marrow
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Describe a non-granular WBC.
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one large round nucleus and a smooth cytoplasm
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What are the female values for a hematocrit?
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37-47% with the average being 42%
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Describe a granular WBC.
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a lobed nucleus and granular cytoplasm
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Neutrophils are also called __________ and ________.
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Segs and Polymorphonuclear Leukocytes (PMNL)
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Describe a basophil under a microscope.
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basic stain, purple lobed nucleus, pale clue cytoplasm, large, bright blue dots on the surface.
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Describe an eosinophil under a microscope.
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Acid stain, purple lobed nucleus, pale blue cytoplasm, large bright red dots on the surface
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How many RBCs are in males ?
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5-6 x 10^6 RBC/mm
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What is hematology?
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the study of the cellular and protein components of blood
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Describe a neutrophil under a microscope
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Neutral stain with Wright's stain, purple lobed nucleus, pale blue-purple cytoplasm, light granulation
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What makes up plasma ?
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90% water, 6-8% proteins (gamma globulins, alpha and beta proteins for body stability), and the rest is primarily glucose and electrolytes
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What is a "Shift to the Left" in relation to a neutrophil ?
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an increase in the percentage of neutrophils which indicates an early infection
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The lifespan of a RBC is ____ .
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4 months
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Will RBC values be higher or lower in higher elevations ?
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They will be HIGHER
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What percentage of a WBC consists of eosinophils ?
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2-5% with an average of 3%
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What are three types of blood cells ?
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Erythrocytes, Leukocytes, Thrombocytes
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What are three types of Granular WBCs ?
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Neutrophils, Eosinophils, Basophils
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What is the function of an eosinophil ?
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detoxifies allergin and fights parasitic infections
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What is the function of a neutrophil ?
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phagocytosis - "pac-man"
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When would you see in increase in eosinophils in a WBC ?
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in response to allergies and parasitic infections
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A WBC total count averages ____ .
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5,000-10,000/mm^3
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What does whole blood consist of ?
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about 45%cells, 55% plasma
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Neutrophils number ________ of WBC
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65-75% with an average of 65%
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What are 2 types of Non-granular WBCs ?
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Lymphocytes and Monocytes
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What is the condition called when there are increased numbers or size of RBCs
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Polycythemia
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How many RBCs are in females ?
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4-5x10^6 RBC/mm
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What is the function of a basophil?
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to secrete histamine and heparin which are vasodialators that cause allergic reactions
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What is serum ?
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serum is a pale straw-colored liquid and is plasma with the clotting factors removed
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WBCs are formed in the _________ .
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red bone marrow
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What is the condition called when there is a reduced number or size of RBCs ?
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Anemia
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Desribe a Hematocrit.
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a packed cell volume (PCV) indicating the % of RBC
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What are the male values for a hematocrit?
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40-54% with the average being 47%
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What is a neutrophil called when it is present in connective tissue?
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microphage
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Basophils decrease or increase when a person is exposed to heavy metals ?
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INCREASE
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What percentage of a WBC consists of basophils ?
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0.5-1%
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What is the function of a monocyte ?
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phagocytosis - "pac-man"
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Describe a platelet.
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small purple "trash" fragments of a large megakaryocyte. They function in blood clotting; there are about 200,000-300,000/mm^3
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What percentage of a WBC consists of monocytes ?
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3-8% with an average of 6%
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Describe a monocyte under a microscope.
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large horseshoe or "W" or twisted, mottled or vacuolated nucleus with pale clue cytoplasm
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What is the function of RBCs ?
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to transport O2 and CO2
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What WBC produces our antibodies ?
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Lymphocytes
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What percentage of a WBC consists of lymphocytes ?
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20-25% with an average of 20%
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