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23 Cards in this Set
- Front
- Back
Blood (definition) |
-liquid connective tissue -consists of cells surrounded by a liquid extracellular matrix -heavier, thicker, and more viscous than water |
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Extracellular matrix (definition) |
-known as blood plasma -suspends various cells and cell fragments |
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Interstitial fluid (definition) |
-fluid that bathes body cells -constantly renewed by blood -ECF plasma |
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Plasma(definition) |
-w/o clotting proteins= serum -plasma= whole blood-formed elements |
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Plasma-Albumins (function) |
-important blood buffers -maintains blood osmotic pressure -produced by liver |
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Plasma-Globulins (function) |
-alpha+beta: produced by liver, transport proteins -gamma:immunoglobulins, antibodies |
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Clotting protein/Fibrinogen (definition+function) |
-produced by plasma cells -include fibrinogent prothrombin (from liver) |
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Formed elements (definition) |
-composed of three principal components -RBCs, WBCs, and platelets -hemopoiesis:process to develop formed elements |
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RBCs (definition) |
-proeythroblasts are precursor cells -biconclave shape helps w/oxygen transport, large surface area |
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WBCs (definition)
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-are leukocytes -classified as either granular or agranular |
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Leukocytes (definition) |
-precursor for all granular leukocytes is myeloblasts -precursor for monocytes is monoblasts -precursor for lymphocytes is lymphoblasts |
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Neutrophil (definition) |
-are neutral to acidic and basic dyes -take pale lilac color -nuclei w/2-5 lobes;polymorphonuclear -younger cells called 'bands' -contain peroxidases+defensins |
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Neutrophil (function) |
-phagocytes+destruction of bacteria and fungi -defensins cause cytolysis -first to arrive at sight of infection |
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Eosinophil (definition) |
-granules stain red/orange with acidic dyes -nucleus has 2 lobes (telephoic receiver) -granules fill the cytoplasm |
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Eosinophil (function) |
-have digestive enzymes -lessen severity of allergy reaction (phagocytes antigen-antibody complex) -combat parasites |
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Basophil (definition) |
-nuclei bilobed/irregular
-granules not uniformed, veil nuclues -stain blue/purple w/basic dyes |
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Basophil (function) |
-liberate histamine (vasodilator)+herapin (anti-coagulant) -involved w/inflammatory+hypersensitivity reactions |
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Lymphocytes (definition) |
-rim of cytoplasm surrounds the nucleus -small portion seen in blood -rest are in lymphoid tissue -large spherical -stain dark purple in nucleus |
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Lymphocytes (function) |
-t-lymphocytes work against viruses, bacteria, fungi, trnasplanted and mast tumor cells -b-lymphocytes give rise to plasma cells that secrete antibodies -immune response is through t+b cells |
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Monocytes (definition) |
-dark purple nucleus -nucleus is kidney/horse-shoe shaped -pale blues foamy cytoplasm |
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Monocytes (function) |
-combat viral, fungi, and intra-cellular bacterial infection -last to arrive at sight of infection -engulf microbes and debris -migrate to tissue to form macrophages; fixed macrophages and migrate macrophages |
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Platelets (definitions) |
-are fragments of cells enclosed in plasma membrane cytoplasm+mitochondria are there -no nucleus -formed from megakaryocytes |
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Platelets (function) |
-form platelet plug in homeostasis -release chemicals that promote vascular spasm and blood clotting |