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Definition
| Set of mechanisms that protect an organism from infection by identifying and killing pathogens |
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Term
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Definition
(innate defenses) are inherited mechanisms that protect the body from many different pathogens
(innate immune system) |
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Term
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Definition
Adaptive mechanisms that protect against specific targets
(The Adaptive Immune system) |
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Term
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Definition
-Response is non-specific
-Exposure leads to immediate maximal response
-Cell-mediated and humoral components
-No immunological memory
-Found in nearly all forms of life |
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Term
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Definition
-Pathogen and antigen specific response
-Lag time between exposure and maximal response
-Cell-mediated and humoral components
-Exposure leads to immunological memory
-Found only in jawed vertebrates |
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Term
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Definition
| (Thymus, bone marrow, spleen, and lymph nodes): essential parts of defense system |
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Term
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Definition
| Suspends red and white blood cells and platelets |
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Term
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Definition
-Found in the closed circulatory system
-Originate from stem cells in bone marrow
-Smaller and lose nucleus |
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Term
| White Blood Cells (leukocytes) |
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Definition
-Found in the closed circulatory system and lymphatic system
-Originate from stem cells in bone marrow
-Clear, and have nucleus and organelles
-Can leave circulatory system
-Can proliferate in response to invading pathogens |
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Term
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Definition
| Consists of fluids that accumulate outside of the closed circulatory system in lymphatic system |
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Definition
Branching system of tiny capillaries connecting larger vessels
-Lymph ducts eventually lead to large lymph duct that connects major vein near heart |
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Term
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Definition
Found along sites of lymph vessels
-Contain a variety of white blood cells |
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Term
| Two Main Groups of White Blood Cells |
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Definition
| Phagocytes and Lymphocytes |
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Term
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Definition
| engulf and digest foreign materials |
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Term
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Definition
| Involved in specific immunity, B and T cells |
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Term
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Definition
| Migrate from circulation to thymus to mature |
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Term
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Definition
| Circulate and also collect in lymph nodes to make antibodies |
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