Description : Type I ADR reactions is___________ a) Caused when T-cells bind to a specific antigen b) Caused by tissue injury c) IgE mediated d) Caused by cytotoxic antibodies
Last Answer : c) IgE mediated
Description : An essential element of all allergy reactions is the a. Release of interferons from tissue cells. b. Accumulation of ige on the surfaces of mast cells and basophils. c. Passage of igg from the immune system to local tissue cells. d. Elimination of all traces of plasma cells from the body.
Last Answer : b. Accumulation of ige on the surfaces of mast cells and basophils.
Description : Answer: b, c, d Eosinophils constitute 1% to 3% of the leukocyte population of the bloodstream. They also reside in tissues and they exhibit phagocytic capabilities. They are less ... the cycle of events that result in recruitment and activation of inflammatory cells at sites of inflammation
Last Answer : Cellular injury from oxidants may be manifest by which of the following? a. Cell membrane lipid peroxidation b. DNA strand breaks c. Cytoskeletal disassembly d. ATP depletion
Description : CD 4 is a transmembrane glycoprotein present in (A) Cytotoxic T cells (B) Helper T cells (C) Suppressor T cells (D) Memory T cells
Last Answer : Answer : A
Description : CD 8 is a transmembrane glycoprotein present in (A) Cytotoxic T cells (B) Helper T cells (C) Suppressor T cells (D) Memory T cells
Last Answer : Answer : C
Description : MHC Class II proteins, in conjunction with antigens, are recognised by (A) Cytotoxic T cells (B) Helper T cells (C) Suppressor T cells (D) Memory T cells
Last Answer : Answer : B
Description : MHC class I proteins, in conjunction with antigens are recognised by (A) Cytotoxic T cells (B) Helper T cells (C) Suppressor T cells (D) Memory T cells
Description : The most abundant T cells are (A) Cytotoxic T cells (B) Helper T cells (C) Suppressor T cells (D) Memory T cells
Description : ____ becomes activated to eliminate "nonself" cells, such as virus- infected cells or cancer cells. a. Humoral immune response b. Cell-mediated immune response c. Complement d. Inflammation
Last Answer : b. Cell-mediated immune response
Description : The transfusion reaction that arises from the mixing of incompatible blood types illustrates a/an a. Form of lupus erythematous. b. Type i hypersensitivity. c. Immune complex reaction. d. Cytotoxic hypersensitivity.
Last Answer : d. Cytotoxic hypersensitivity.
Description : In the body's immune system, _____ are the major producers of secreted antibodies. a. macrophages b. plasma cells c. T cells d. B cells
Last Answer : b. plasma cells
Description : The early response in asthma is due to activity. a. Cytotoxic T Cell b. Basophil c. TH2 Cell And NI( Cell d. Dendritic Cells
Last Answer : c. TH2 Cell And NI( Cell
Description : Cytotoxic T-cells can be recognized by which of the following cell surface marker? A- CD4 B- CD7 C- CD8 D- CD9
Last Answer : CD8
Description : . MHC class I proteins would be found on___________ whereas MHC class II proteins would be found on_____________ a. Nucleated Cells; Plasma Cells b. Nucleated Cells; Macrophages c. Dendritic Cells; Neutrophils d. Only White Blood Cells; Red Blood Cells
Last Answer : b. Nucleated Cells; Macrophages
Description : The cytotoxic T cells have a_____ co-receptor while the helper T cells have a _____ co-receptor. a. CD8. CD4 b. CD4, CD8 c. MHCI, MHCII d. MHCII, MHCI
Last Answer : a. CD8. CD4
Description : Cytotoxic T cells release which 2 toxic proteins as they fight target cells? a. histamine and heparin b. perforin and granzymes c. interleukin and interferon d. lysozymes and cytokines
Last Answer : b. perforin and granzymes
Description : Performs and granzymes are found in a. Helper T cells. b. Antigen-presenting cells. c. Cytotoxic T cells. d. B cells.
Last Answer : c. Cytotoxic T cells.
Description : TH1 cells activate a. B cells. b. Killing of pathogens in macrophages. c. Cytotoxic T cells. d. Humoral immunity.
Last Answer : d. Humoral immunity
Description : CD8 surface antigen is present in A- cytotoxic T cells B- .suppresssor T cells C- both (a) and (b) D- none of these
Last Answer : both (a) and (b)
Description : The immune system normally discriminates between which types of antigens. a) B and T cells b) self and non-self c) humoral and cell-mediated d) primary and secondary
Last Answer : ANSWER: B -- SELF AND NON-SELF
Description : Acquired immunity consists of humoral immunity maintained by _____ and _____, and cell-mediated immunity controlled by _____ a. T cells, complement, B cells b. T cells, Interleukin, B cells c. B cells, antibodies, T cells d. B cells, histamine, T cells
Last Answer : c. B cells, antibodies, T cells
Description : ._________ cells are associated with immunity while_____________ cells are part of___________ immunity. a. B; cell-mediated; T; innate b. T; humoral; B; cellular c. T; cell-mediated; B; humoral d. T; humoral; B; nonspecific
Last Answer : c. T; cell-mediated; B; humoral
Description : Immunosuppressive agents used in preventing transplant rejection primarily affect a. macrophages. b. neutrophils. c. dendritic cells. d. T cells.
Last Answer : d. T cells.
Description : The neurohormonal arm of the stress response is well defined. Less is known about the inflammatory arm mediated primarily by cytokines. Which of the following statement(s) is/are true ... Cytokine release may stimulate the release of other cytokines leading to an important cascade of events
Last Answer : Answer: a, d Cytokines, which are produced at the site of injury by endothelial cells and by diverse immune cells throughout the body, also occupy a pivotal position in the stress response ... act as hormones and spill over into the systemic circulation and become detectable in the bloodstream
Description : All the following are types of immediate hypersensitivities except: a. Asthma. b. Contact Dermatitis. c. Food Allergies. d. Hay Fever.
Last Answer : b. Contact Dermatitis.
Description : Which of the following terms refers to a form of white blood cell involved in immune response? a) Lymphocyte Both B and T lymphocytes respond to exposure to antigens. b) Granulocyte Granulocytes ... blood cell without central pallor, seen with hemolysis. d) Thrombocyte A thombocyte is a platelet.
Last Answer : a) Lymphocyte Both B and T lymphocytes respond to exposure to antigens.
Description : Which one of the following applies to the disease systemic lupus erythematosus (SLE)? a. It is a type of cytotoxic hypersensitivity. b. It is often accompanied by a butterfly rash. c. It is due to an overreaction of T lymphocytes. d. It is the result of a cellular hypersensitivity.
Last Answer : d. It is the result of a cellular hypersensitivity.
Description : Human immunodeficiency virus destroys (A) Cytotoxic T cells (B) Helper T cells (C) B cells (D) Plasma cells
Description : Cell-mediated immunity is the function of (A) B lymphocytes (B) T lymphocytes (C) Plasma cells (D) Basophils
Description : Allergy is immediate hypersensitivity mediated by _____and mast cell degranulation a) IgG b) IgE c) IgM d) IgA e) IgD
Last Answer : Ans: B
Description : What immunodeficiency disorder is associated with a tack of T and B cells and complete immune dysfunction? a. DiGeorge syndrome b. Severe combined immunodeficiency disease c. Chronic granulomatous disease d. Chédiak-Higashi syndrome
Last Answer : b. Severe combined immunodeficiency disease
Description : Which pair of cells represents granulocytes? a. Basophils and lymphocytes b. Neutrophils and eosinophils c. Eosinophils and monocytes d. Lymphocytes and monocytes
Last Answer : b. Neutrophils and eosinophils
Description : Grafted kidney may be rejected in a patient due to (a) passive immune response (b) innate immune response (c) humoral immune response (d) cell-mediated immune response.
Last Answer : (d) cell-mediated immune response.
Description : The immune system originates with a primordial cell of the fetus known as the _____ stem cell. a. T b. dendritic c. monocyte d. hematopoietic 18: Which one of the f
Last Answer : d. hematopoietic
Description : During the course of a cellular hypersensitivity a. Antibodies react with antigens in tissues. b. Serotonin and histamine are released by cells. c. Immune complexes form on blood vessel surfaces. d. A skin thickening called an induration may form.
Last Answer : b. Serotonin and histamine are released by cells.
Description : Large parasites such as helminthes may be killed extracellularly by the action of A- basophils B- monocytes C- eosinophils D- neutrophils
Last Answer : eosinophils
Description : Cancer cells interfere with cell functions in all the following ways except: a. they rob cells of their nutrients and induce cell starvation. b. they stimulate the immune system to produce destructive ... reduce the oxygen supply to cells. d. they overwhelm cells through sheer force of numbers.
Last Answer : b. they stimulate the immune system to produce destructive interferons.
Description : Allergic reactions are mediated by (A) IgA (B) IgG (C) IgD (D) IgE
Last Answer : Answer : D
Description : Which of the following mediates Type I hypersensitivity reaction? A- IgE B- IgG C- IgM D- IgD
Last Answer : IgE
Description : A cytotoxic hypersensitivity would occur if blood type is transfused into a person with blood type a. A;AB b. 0; AB c. A; 0 d. 0; B
Last Answer : a. A;AB
Description : Booster immunizations are used to raise the antibody level by stimulating the _____ cells to induce the secondary antibody response. a. helper T b. B c. memory d. plasma
Last Answer : c. memory
Description : Transplantation of tissues/organs fails often due to non-acceptance by the patient’s body. Which type of immune response is responsible for such rejections? (a) Cell-mediated immune response (b) Hormonal immune response (c) Physiological immune response (d) Autoimmune response
Last Answer : (a) Cell-mediated immune response
Description : Transplantation of tissues/organs fails often due to non-acceptance by the patient's body. Which type of immune-response is responsible for such rejections ? (1) Cell - mediated immune response (2) Hormonal immune response (3) Physiological immune response (4) Autoimmune response
Last Answer : (1) Cell - mediated immune response
Description : In many types of cancer, proteins that are crucial regulators of the cell cycle are often mutated and cannot function correctly. This leads to the evasion of apoptosis and to the loss of control of cell ... protein named p53. What is the normal function of p53 that is lost when it is mutated?
Last Answer : Normally, p53 senses DNA damage and acts as a transcription factor for checkpoint control genes.
Description : The colostrum, or first milk of a nursing mother, contains _____ that is transferred to the nursing child. a. IgA b. IgG c. IgM d. IgE
Last Answer : a. IgA
Description : The _____ class of antibodies is the principal component of a secondary antibody response. a. IgM b. IgD c. IgG d. IgE
Last Answer : c. IgG
Description : Resistance to disease in the passageways of the respiratory and gastrointestinal tract is dependent on antibodies in the class _____. a. IgG b. IgA c. IgE d. IgM
Last Answer : b. IgA
Description : This dimeric antibody class often occurs in secretions of the respiratory and gastrointestinal tracts. a. IgE b. IgM c. IgA. d. IgG
Last Answer : c. IgA.
Description : Which of the following statement(s) is/are true concerning ischemia reperfusion injury? a. During ischemia, ATP degradation results in increased plasma and intracellular levels of ... immunization with antibodies to neutrophil adhesive complex lessen the ischemic/reperfusion microvascular injury
Last Answer : Answer: a, b, c, d During the ischemia and hypoperfusion phase, degradation of ATP stores essential to maintain cell integrity and significant loss of diffusible ... either the neutrophil adhesive complex or the endothelial selectins dramatically lessens ischemia/reperfusion microvascular injury
Description : Epithelioid cells within granulomas are derived from which of the following? B A. Plasma cells B. Macrophages C. Lymphocytes D. Neutrophils
Last Answer : Macrophages