For an autoimmune disease to occur, lymphocytes do not learn how to recognize foreign pathogens as dangerous and self-antigens as safe. What is the second thing that needs to happen specifically with lymphocytes to have an autoimmune disease? O a. Malfunctioning lymphocytes attach to macrophages O b. Malfunctioning lymphocytes are not destroyed by the body O c. Malfunctioning lymphocytes prevent normal lymphocytes from reproducing O d. Malfunctioning lymphocytes trigger the complement system to initiate an immune response

Q: Which of the following are TRUE of class I major histocompatibility complex (MHC) molecules? a.…

A: MHC helps to recognize the antigens molecule and transfer the signal to the cell

Q: Which does NOT describe humoral immunity? Group of answer choices a. Antibodies are secreted by…

A: everyday we are exposed to large number of infectious agent post op however only a few of these…

Q: Identify the function of the Purkinje fibres. Select one: O a. O b. O c. O d. act as a pacemaker and…

A: The conducting system of heart consists of SA node, AV node, Right and left AV bundles, purkinje…

Q: Humoral immunity is the part of the adaptive immune system involving: A.cytotoxic T cells killing…

A: The adaptive immune system is also known as acquired or specific immune system. It is a subset of…

Q: John frequently encountered bacterial infections. Tests for immune cells showed the presence of…

A: Complement cascade is the part of innate immunity that consists of lot of proteins acting in a…

Q: How lymphocytes acts as soldiers of our body?

A: Lymphocytes are two types - B lymphocyte and T lymphocyte.

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: 1.helper T cells 2.B cells 3.Cytotoxic T cells 4.memory B and T cells…

A: Correct answer: 1 - A & B 2- C 3- E 4- D

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 lymphocyte has a role in both cell-mediated andhumoral immunity?

A: The body's important transport medium is blood. Leukocytes (white blood cells) are accountable for…

Q: Which of the following statements best characterizes interferons?

A: Answer ; Option (A) is right. - Interferons are a nonspecific defense used to respond to viruses. -…

Q: CHAPTER 21 The Respiratory System SECTION 1 Revi ew Labeling 6. 10 11 12 14 bet 15 13 16

A: The organ system of the human body through which exchange of gases occurs between the body and the…

Q: How is cell-mediated response different from the humoral response? What would happen if the body…

A: Immune system is a complex network of organs that plays a major role in protecting the body from…

Q: Which event happens last in a humoral immune response? 1) CD4 T cell activation 2) presentation of…

A: The correct option is (d) the production of antibodies.

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: 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: Which of the following statements is TRUE? A. Lymphatic vessels and veins have valves B. All…

A: Hi! Since you posted multiple questions, we will be answering the first few for you. If you want the…

Q: The germinal center of a lymph node   a. Is the location of B cells undergoing clonal expansion…

A: Lymph nodes are small, bean-shaped glands that are the part of the lymphatic system. They are…

Immunology

Immunology is the division of science involved with the immune reactions occurring in living organisms. The organisms are accustomed to evolving internal defense mechanisms to evade the invasion of microbial pathogens. Diverse cells are connected with stimulating the immune responses, which produce inhospitable conditions to the microbes prompting their lysis and thus inhibits the multiplication of the pathogens. The immune system can distinguish the pathogens through the aid of cellular intercommunication and launch responses to destroy them.