Term
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Definition
thse cells produce antibodies and mature in bone marrow
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Term
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Definition
| cell that is involved in an array of functions, including recognizing and killing host cells that are infected with a virus. |
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Term
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Definition
| thses are bacterium, virus or other microganisms that can cause disease. |
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Term
| Why does the immune system have memory? |
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Definition
| the immune systme has memory because of the memory B-cells that can detect previouse pathogens if the are to enter the body again. |
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Term
| What is the inflammatory response? What cells are involved? Cell roles? |
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Definition
Infammatory response: a response system that is seen in most cases of infection or tissue injury, in which the affected tissue becomes swollen, and painfu.
Cells involved:
- Platlets: relesase proteins taht form clots and lessen bleeding.
- macrophages: secrete signaling moleculse called chemokines: they forma gradient that marks a path to the wound site
- mast cells: relase chmical messengers ath constrict blood vessels near the wound site so the blood flow is reduced and blood loss. mast cells also relase histamie: they induce blood vessels that are farther away from the wound site so they dialate and become more permeable
- neutrophils: destroy invading cells by phagocytosis(eating cells)
- cytokines: attract other immune system cells to the site, stimulate bone marrow to make and release additional neutraphils and macrophaes, induce fever.
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Term
| What other non-specific mechanisms do humans have for prevention against pathogens |
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Definition
- skin
- Mucous lining of respiratory passages
- Acid secretions and enzymes
- Phagocytosis
- Fever
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Term
| What are the major roles of the lymphatic system? |
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Definition
1. Return interstitial fluid to circulatory system
2. to fight infection |
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Term
| What are the major organs of the lymphatic system? |
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Definition
| bone marrow, lymph nodes, spleen, and thymus |
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Term
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Definition
| small oval organs taht are located all aoud the body, the filter the lymph passing through them. |
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Term
| What is lymph/interstitial fluid? |
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Definition
| A lymph is a mixture o ffluid and lymphocytes. the luquid portion of lumph originates in fluid that is forced out of capillaries by blood pressure |
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Term
| How does lymph move through lymphatic vessels? |
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Definition
| Lymphocte transport: they circulate thought the blood and the secondary organs of the immune system lymph node, spleen and lymphatic ducts. the duts are thin-walled, brancing tubles that transport lymph throughout the body in the lymphatic system. |
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Term
| What and where is the thoracic duct? |
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Definition
The main vessel of the lymphatic system, passing upward in front
of the spine and draining into the left innominate vein near the
base of the neck. |
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Term
| What are the two main types of lymphocytes? Where are they created? Where do they mature? |
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Definition
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Term
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Definition
| any foreign molecule, oftern a protein that can stimulate a specific resopnse by the immune response. |
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Term
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Definition
| am immunoglobulin protein, produced by B cells, that can bind to specific part of an antigen, tagging it for attack by the immunce system. they are Y-shaped structre and, in their monomer form, consistt of two idnntical light chains and two identical heavy chains. |
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