A sudden drop in blood pressure in response to an antigen in thebody is a characteristic of which of the following?a. inflammatory responseb. passive immunityc. cell-mediated immunityd. anaphylactic shocke. None of these are correct.

Q: Which of the following cell types is important innonspecific responses to infection?a. natural…

A: The branch of science which deals with components of immune system is called Immunology. Immunity…

Q: Which of the following is NOT a function of the immune system?

A: A complex network of cells, organs and proteins that can defend the body against infection and which…

Q: Which of the following characteristics pertains to T cells?a. have specific receptorsb. are of more…

A: T cells (also called T lymphocytes) are one of the major components of the adaptive immune system.…

Q: Vhich of the following is FALSE? O a. The complement system and inflammation are examples of innate…

A: The immune system protects our body from infections through two lines of defense mechanisms;…

Q: True of humoral immunity: The secondary antibody response occurs because of cytotoxic T cells. It is…

A: Immune cells are part of immune system in the body. The immune system protects our body against…

Q: For each of the following statements, indicate whether the statement is true or false. If false,…

A: a. TrueBooster shots are given because the immune response to an antigen weakens over time. Repeated…

Q: All of the following are necessary for a specific immune response except: O a. red blood cells O b.…

A: Immune response is the manner in which the body protects itself against substances it considers…

Q: Which of the following is a critical feature ofimmediate hypersensitivity?a. inflammationb.…

A: Immediate hypersensitivity or type I hypersensitivity response is the binding of allergen-specific…

Q: Decreased immunity is a symptom of HIV/AIDS. This is caused by which of the following? Select one:…

A: Acquired immunodeficiency syndrome (AIDS) is a spectrum of life-threatening conditions is caused by…

Q: Human leukocyte antigens (HLAs) are involved ina. cell-mediated immunity. d. complement.b.…

A: HLA stands for human leukocyte antigens. They are antigens and found on the surface of white blood…

Q: interferons: a. cause inflammation b. inhibit viral infection c. aid in phagocytosis d. decrease…

A: Introduction: There are various methods by which chemical mediators can start an immune response.…

Q: Which of the following triggers or enhances an inflammatory response? Select one: a. lysozyme Ob.…

A: answer :  The one which can enhance an inflammatory response is  Option : e) Cytokines

Q: Which of the following true of active immunity? Is considered to provide short term protection O…

A: The immune system protects the body from the external attack of a pathogen or foreign body. Active…

Q: Explain why each choice (a-d) is correct or incorrect.  A vaccine is effective because  a. The…

A: Vaccine contain weak or inactive parts of particular antigen that triggers an immune response…

Q: Which is/are not part of adaptive immunity?a. phagocytic cells e. antigen receptorsb.…

A: Adaptive immunity is a type of immunity that an organism gets after it has been exposed to an…

Q: When immunity is developed in another individual is transferred to an individual who was not…

A: The body's ability to identify pathogens (antigens),to eliminate dangerous pathogens to prevent them…

Q: is a mechanism of self-tolerance in which the lymphocyte will not achieve a full activation due to…

A: Lymphocyte is a kind of white blood cells present in immune system of jawed vertebrates.Lymphocytes…

Q: Which is/are not part of innate immunity?a. phagocytic cells e. inflammationb. fever f. cytokinesc.…

A: The immune system covers the complex biological reactions that protect the body against invading…

Q: Immune responses tailored to specific antigens involvea. T cells.b. macrophages.c. monocytes.d.…

A: Immunity can be defined as the ability of an organism to fight against infections caused by a…

Q: Explain why each choice (a-d) is correct or incorrect. B lymphocytes are categorized as part of the…

A: The immune system in our body is responsible for protecting us against foreign pathogens. The white…

Q: Which of the following is a function of the thymus?a. production of red blood cellsb. secretion of…

A: Answer: Introduction: Primary lymphoid organs – Primary lymphoid organs are including thymus, Bursa…

Q: Which of the following causes damage to the cells of the immunesystem and allows for opportunistic…

A: Immune system of the body protect the body by defending invading pathogens from surroundings. The…

Q: All of the following are actions of the complement system except: O a. decreasing fever O b.…

A: Immunity is a resistance of our body against the invading pathogenic agent. It is also considered as…

Q: Discuss the difference between humoral and cell-mediated immunity

A: The immune system of the body protects the organisms from the harmful pathogen. Pathogens are the…

Q: An antigen must be considered: a. An antibody b. To produce cytokines c. Foreign d. A T lymphocyte

A: Our Immune system is capable of fighting with the antigen. Immune system has many cells that help us…

Q: Indicate to which branch(es) of the immune system the following statements apply, using H for the…

A: The human body may aim its defense against dangerous agents including bacteria, viruses, and poisons…

Q: All but one of the following occurs during the inflammatory response.  Select the example below that…

A: c. Vasoconstriction prevents excessive blood loss due to injury. It is the correct option.…

Q: Select all of the following statetments that apply to immunological memory:   A. A small…

A: Immunological memory refers to the immune system's capacity to react to infections more quickly and…

Q: Two of the major actions of complement are a. increased inflammatory response and cytolysis. b.…

A: The complement system gets activated when it comes in contact with the antibody molecule that is…

Q: Give an example, explain and give characteristics about how you alter your immunity to certain…

A: Immunity refers to the resistance of the human body and other multicellular organisms to the…

Q: Explain the following: Human skeleton plays a role in immunity. Males tend to have bulkier or…

A: Skeleton bone size and sturdiness differes between the two sexes. It starts from early childhood as…

Q: The largest and most effective of the phagocytes are:  a. red blood cells b. lymph nodes c.…

A: Question- The largest and most effective of the phagocytes are:  a. red blood cells b. lymph nodes…

Q: Explain the difference between the two types of immunity. In what situation is one type preferred…

A: Immunity is the ability of the organism to recognize and differentiate between the self and non-self…

Q: Which of these is an example of innate immunity?a. Tears and saliva wash away microorganisms.b.…

A: Humans are always surrounded by microorganisms searching for an opportunistic host. These pathogens…

Q: The cytolytic action of the complement system is most similar to the action ofa. interleukin-1.b.…

A: Complement system- It is a cascade system, plays a role in immune system by enhancing the antibodies…

Defense Mechanism

Circumstances influence and compel people to behave in a certain way. One such behavior is a defense mechanism. It is employed by people to escape from unpleasant circumstances, thoughts and actions. Defense mechanisms are, thus, psychological strategies that help to avert and avoid unwanted feelings such as guilt or shame and situations such as threat and danger.