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mt Ch.9A.1
| Question | Answer |
|---|---|
| antibody | protective protein produced by B lymphocytes in response to the presence of a specific foreign substance called an antigen |
| antigen | substance, recognized as harmful to the host, that stimulates formation of antibodies in an immunocompetent individual |
| cytokine | chemical substance produced by certain cells that initiates inhibits, increases, or decreases activity in other cells |
| dendritic cell | specialized type of monocyte that displays antigens on is cel surface and presents them to components of the immune system |
| immunocompetent | possessing the ability to develop an immune response |
| natural killer cells (NK cells) | specialized lymphocytes that destroy virally infected cells and tumor cells by releasing chemicals that disrupt their cell membranes, causing their intercellular fluid to leak out |
| plasma | a liquid medium that composes blood |
| erythrocytes | red blood cells |
| leukocytes | white blood cells |
| thrombocytes | platelets |
| blastic | embryonic |
| hematopoiesis | the process of generating new blood cells |
| hemopoiesis | forming of blood cells |
| hemoglobin | iron containing compound, transports oxygen from the lung tissues and brings CO2 back |
| hemosiderin | hemoglobin breaks down into this iron compound |
| phagocytes | destroy foreign particles |
| diapedesis | migration through endothelial walls of capillaries and venules of white blood cells |
| granuloctyes | the presence of granules in their cytoplasm, further classified into neutrophils, eosinophils, and basophils |
| agranulocytes | the absence of granules in the cytoplasm |
| polymorphonuclear leukocytes (PMNLs, polys) | alternative naming classification for mature granulocytes |
| mononuclear lymphocytes (MNLs) | aka agranular granulocytes |
| platelets (thrombocytes) | smallest formed elements found in blood, cell fragments |
| thromboplastin | initiates clt formation |
| thrombus | blood clot |
| hemostasis | impeding the flow of blood |
| fibrinogen | plasma proteins |
| blood serum | product of blood plasma formed when fibrinogen and clotting factors are removed from blood plasma |
| antibodies | protein produced by plasma cells that identify, neutralize and destroy foreign antigens |
| lymph | fluid that contains lymphocytes and monocytes |
| lymph vessels | transport lymph |
| interstital | tissue fluid |
| spleen | resembles a lymph node, acts as a filter |
| mediastinum | upper part of the chest, between the lungss |
| thymus | controls the immune system by transforming certain lymphocytes into T cells |
| onsilss | masses of lymphatic tissue located in the pharynx |
| pathogens | disease causing organisms |
| innate immunity | barriers designed to keep the pathogen from gaining entry into the body, considered non-specific |
| innate immune system | present at the very beginning of life |
| first line barriers | keep pathogens from entering the body |
| second line barriers | stop the spread of pathogens once inside the body |
| acquired / adaptive immunity | develops only after birth as a lifelong monitoring system, considered specific |
| antigen presenting cell | alerts the immune system to the presence of a pathogen |
| dendritic cells | specialized macrophages |
| lymphocytes | B & T cells, active cells of the acquired immune response |
| humoral or antibody immunity | when B cells react |
| cellular immunity | when T cells react |
| cytokines | hormonelike chemicals |
Created by:
tuckerea