Exam 16: Disorders in Immunity
Severe combined immunodeficiencies (SCIDs) are due to
E
The major categories of hypersensitivities that typically involve a B-cell immunoglobulin response is/are
D
Write a definition for immunopathology and discuss the four major categories of immune system responses with specific examples for each.
Immunopathology is the study of diseases and disorders caused by the immune system's abnormal response to foreign substances or the body's own tissues. This field of study focuses on understanding the mechanisms of immune system dysfunction and its impact on health.
There are four major categories of immune system responses: hypersensitivity, autoimmunity, immunodeficiency, and transplant rejection.
1. Hypersensitivity: This category includes allergic reactions and is characterized by an exaggerated immune response to harmless substances. Examples include allergic rhinitis (hay fever) triggered by pollen, and anaphylaxis caused by exposure to certain foods or insect stings.
2. Autoimmunity: In this category, the immune system mistakenly targets and attacks the body's own cells and tissues. Examples of autoimmune diseases include rheumatoid arthritis, lupus, and type 1 diabetes.
3. Immunodeficiency: This category refers to conditions in which the immune system is weakened or compromised, leading to increased susceptibility to infections. Examples include HIV/AIDS, which impairs the function of the immune system, and primary immunodeficiency disorders such as severe combined immunodeficiency (SCID).
4. Transplant rejection: This category involves the immune system's rejection of transplanted organs or tissues as foreign. Examples include rejection of a transplanted kidney, heart, or liver, which can occur despite efforts to match the donor and recipient's tissues as closely as possible.
Understanding these categories of immune system responses is crucial for diagnosing and treating immunopathology-related conditions, as well as for developing targeted therapies to modulate immune system function.
When grafted tissue such as bone marrow contains passenger lymphocytes, what could result?
The antigens to which allergic individuals are sensitive are termed _____.
The ___________ theory explains that during embryonic growth, some tissues are immunologically privileged.
Mold spores and animal dander are considered to be which type of allergen?
Compare and contrast local atopies and contact dermatitis with regard to: a) components and events of the immune response, b) tissue damaging mediators, and c) two examples of each.
_____ involves determination of donor HLA antigens compared to those of the recipient's tissue.
Allergic _________ is a seasonal reaction to inhaled pollen or molds.
Autoantibodies cause tissue injury in all the following diseases, except
Tissue transplanted from one body site on a patient to a different body site on that patient is called an _____.
All of the following are correct about Type O blood, except
Which event is the process of releasing chemical mediators?
Large quantities of antibodies that react to the second entry of antigen and lead to formation of antigen-antibody complexes that deposit in basement membranes occur in
Cancer cells can not displace normal blood cells and bone marrow.
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