Exam 12: Body Defenses

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The __________ system,a group of inactive plasma proteins that,when sequentially activated,bring about destruction of foreign cells by attacking their plasma __________.

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Give an overview of immune system function.

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What cells in the epidermis are responsible for the shades of skin color of the various races?

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What mediates the primary response?

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Bacteria are non-nucleated,single-celled microorganisms self-equipped with all the machinery essential for their survival and reproduction.​

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The currently accepted clonal selection theory proposes that diverse B lymphocytes are produced during fetal development,each capable of synthesizing an antibody against a particular antigen before ever being exposed to it.​

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Lymphocytes and macrophages are responsive to blood-borne signals from the digestive system and from certain endocrine glands.​

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Granstein cells act as a "brake" on skin-activated immune responses.

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What is the term for cellular suicide?

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__________ cells,which migrate to the skin from bone marrow,are dendritic cells that serve as antigen-presenting cells.​

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Shared characteristics of the immune reactions to allergens and parasitic worms include IgE antibody production and increased basophil and eosinophil activity.​

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On exposure to tissue thromboplastin in the injured tissue and to specific chemicals secreted by phagocytes on the scene,__________ is converted into __________.

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What kind of helper T cells does HIV (the AIDS virus)selectively invade?

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About 5 million Americans suffer from some type of autoimmune disease,with the incidence being about three times higher in males than in females.​

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When a person with an allergic tendency is first exposed to a particular allergen,what cytokine is secreted by compatible helper T cells?​

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Membrane attack complexes can be formed and lyse a microbe within 0.1 millisecond.​

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If an immediate hypersensitivity reaction is concentrated primarily within the bronchioles,what condition results?​

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Vaccination deliberately exposes the person to a pathogen that has been stripped of its disease-inducing capability (that is,the pathogen is attenuated).​

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Explain why genetic mutations don't always lead to cancer.

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The process by which neutrophils and monocytes squeeze out between cells of the blood vessel wall during an inflammatory response is known as:

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