Select the best answer or answers from the choices given: Antibodies released by plasma cells are involved in (a) humoral immunity, (b) immediate hypersensitivity reactions, (c) autoimmune disorders, (d) all of the above.
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Select the best answer or answers from the choices given: Antibodies released by plasma cells are involved in (a) humoral immunity, (b) immediate hypersensitivity reactions, (c) autoimmune disorders, (d) all of the above.
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- Select the best answer or answers from the choices given: Cells that can directly attack target cells include all of the following except (a) macrophages, (b) cytotoxic T cells, (c) helper T cells, (d) natural killer cells.Select the best answer or answers from the choices given: The process by which neutrophils squeeze through capillary walls in response to inflammatory signals is called (a) diapedesis, (b) chemotaxis, (c) margination, (d) opsonization.Select the best answer or answers from the choices given: Suppose your blood is AB positive. This means that (a) agglutinogens A and B are present on your red blood cells, (b) there are no anti-A or anti-B antodies in your plasma, c) your blood is Rh+ (d) all of the above.
- Select the best answer or answers from the choices given: The cell type most often invaded by HIV is a(n) (a) eosinophil, (b) cytotoxic T cell, (c) natural killer cell, (d) helper T cell, (e) B cell.Select the best answer or answers from the choices given: Lymphocytes that develop immunocompetence in the bone marrow are (a) T lymphocytes, (b) B lymphocytes, (c) NK cells, (d) B and T lymphocytes.Select the best answer or answers from the choices given: Complement fixation promotes all of the following except (a) cell lysis, (b) inflammation, (c) opsonization, (d) interferon release, (e) chemotaxis of neutrophils and other cells.
- Select the best answer or answers from the choices given: The germinal centers in lymph nodes are largely sites of (a) macrophages, (b) proliferating B lymphocytes, (c) T lymphocytes, (d) all of these.Select the best answer or answers from the choices given: The white blood cell that releases histamine and other; inflammatory chemicals is the (a) basophil, (b) neutrophil, (c) monocyte, (d) eosinophil,Select the best answer or answers from the choices given: Lymph nodes are densely clustered in all of the following body areas except (a) the brain, (b) the axillae, (c) the groin, (d) the cervical region.
- Select the best answer or answers from the choices given: Small molecules that must combine with large proteins to become immunogenic are called (a) complete antigens, (b) kinins, (c) antigenic determinants, (d) haptens.Select the best answer or answers from the choices given: Which antibody class is abundant in body secretions? (a) IgA, (b) IgD, (c) IgE, (d) IgG, (e) IgM.A 42-year-old woman presents with an enlarged supraclavicular lymph node. The patient is HIV positive and takes antiviral medications. A lymph node biopsy is shown in the image. The tumor cells express B cell antigens and are positive for Epstein-Barr virus (EBV). Which of the following is the most likely diagnosis? (A) Follicular lymphoma (B) Hodgkin lymphoma (C) Large B-cell lymphoma (D) MALT lymphoma (E) Mantle cell lymphoma
