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20 Cards in this Set
- Front
- Back
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Neutrophil -Phagocyte in blood -Granulocyte -1st to site of infection -Granules help kill |
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Lymphocyte -Specific immune response. B and T cells -Agranulocyte -B-cell = APC |
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Monocyte -Becomes macrophage - Phagocyte in tissue -Agranulocyte -Largest WBC |
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Eosinophil -Fights parasites and worms -Granulocyte -Acidic granules |
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Basophil -Releases inflammatory chemicals -Granulocyte |
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Name the Granulocytes. |
Neutrophil Eosinophil Basophil |
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Name the Agranulocytes |
Lymphocyte Monocyte |
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What are the basic functions of blood? (3) |
1. Distribution -Oxygen and CO2 -Nutrients and metabolic waste -Hormones 2. Regulation -Body temperature -Normal pH (~7.4) -Adequate fluid volume (~5L) 3. Protection -Prevent blood loss -Prevent infection |
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What are the components of Blood? |
Plasma (55%) -- Erythrocytes (RBCs) (45%) --Transport oxygen Buffy Coat (<1%) -Leukocytes (WBCs) --Protect the body -Platelets --Help stop bleeding |
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What are the two parts of the immune system? |
Leukocytes - Specialized immune cells Lymphoid organs and tissues |
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What are the primary lymphoid organs? |
Bone marrow Thymus |
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What are the secondary lymphoid organs? |
Tonsils Spleen Peyer's patches Appendix |
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What are the three parts of the lymphatic system? |
Lymphatic vessels Lymph nodes Lymph |
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What do lymph nodes do? |
Filter lymph Facilitate immune response |
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What does the spleen do? |
Filter blood -Removes pathogens, aged RBCs and platelets -Stores platelets and breakdown products of RBCs -Site for activation of lymphocytes |
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What are lacteals? |
Special lymphatic capillaries in the intestines transport absorbed fat from intestines into the blood. |
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What are the three lines of defense? |
1. Surface barriers (innate) -Skin -Mucous membranes 2. Internal defenses (innate) -Phagocytes -Fever -NK Cells -Antimicrobial proteins -Inflammation 3. Adaptive defenses (adaptive) -B cells -T cells |
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The 2 branches of adaptive defenses? |
Humoral (B-cells) Cellular (T cells) |
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Features of Humoral Branch? |
B lymphocytes Release antibodies Target extracellular invaders Facilitate phagocytosis |
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Features of Cell mediated Branch? |
T lymphocytes (cytotoxic) Release cytotoxic chemicals Target intracellular invaders Cause cell death |
