Which of the following statements regarding hypersensitivity are true? (Check all that apply.) A)The acceptance of self cells is known as immunological tolerance. B)Allergies are caused by IgG secretion in response to antigens. C)Autoreactive B cells produce autoantibodies causing inflammation. D)Itchy welts or hives could be called a local anaphylaxis. E)Delayed hypersensitivity is mediated by T_H cells and macrophages.

Question

Quizplus · Accepted Answer

Immunological tolerance refers to the immune system's ability to recognize self cells and not attack them. Autoreactive B cells can produce autoantibodies, leading to inflammation. Local anaphylaxis can manifest as itchy welts or hives. Delayed hypersensitivity involves T_H cells and macrophages. Allergies are typically caused by IgE, not IgG.

Which of the Following Statements Regarding Hypersensitivity Are True? (Check