What do macrophages do that neutrophils don't do? OA. antigen presentation O B. degranulate Oc. phagocytose pathogens O D. both a and b O E. both b and c

Q: An anti-histamine is administered to prevent which cells from causing inflammation? O macrophages O…

A: Our immune system used different cellular, physical and physiological components that provides us a…

Q: What would be a CORRECT statement regarding clonal deletion? O This process removes the lymphocytes…

A: The immune system is defined as a complex network of different biological structures and processes…

Q: What must happen in order for a donor organ to not be rejected by the recipient? The MHC complexes…

A: Transplantation is done with the heart, spleen, liver, blood vessels, eyes, and tissues from one…

Q: Which of the following immune cells are most efficient for eliminating parasitic worms? 單選: A.…

A: Eosinophils as effector cells against parasites. Following nematode infection, eosinophils gather…

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: 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: 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: Match the cell to its function. Some answers may be used more than once. Some questions may have…

A: The immune system is associated with the body's defence mechanism that functions to resist the entry…

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: CD1 binds to 單選: A. MHC class II. B. polysaccharides. C. lipids. D. peptides. E. MHC class I. O O O…

A: The majority of cytotoxic T cells have T-cell receptors (TCRs) that can identify a particular…

Q: What molecule ensures that T-lymphocytes which encounter their antigen in the lymph node stay there…

A: T cell is a type of lymphocyte.T cells are one of the important white blood cells of the immune…

Q: Which of the following are specific immune responses (select all that apply)? o T lymphocyte…

A: Immunity is defined as the intrinsic ability of the body to fight against infections and diseases.…

Q: Your patient is born without B cells. He cannot a. fight off intracellular infections b. have a Type…

A: Introduction B lymphocytes, commonly known as B cells, produce antibodies, which are a type of…

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: The human immunodeficiency virus has a preference forinfectinga. B lymphocytes.b. cytotoxic T…

A: The human immunodeficiency virus has a preference forinfecting

Q: What does the T-cell receptor on the helper T cell bind? free antigen in soluble form b. antigens…

A:

Q: 1.    Mr. Ackah, a retired teacher had been recording consistent increase of blood pressure for the…

A: # According to our guidelines we can answer only the first question. Blood pressure: The normal…

Q: Which structure is not functioning properly if an electrical device is needed to stimulate the atria…

A: The heart has an electrical conduction system that consists of a highly constricted and controlled…

Q: The "skin test" is diagnostic for tuberculosis. What is the principle behind this test? O…

A: Tuberculosis is a very common disease that is caused due to the infection of bacteria Mycobacterium…

Q: Which of the following is not an autoimmune disease?a. multiple sclerosisb. myasthenia gravisc.…

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

Q: Which of the following pairs is mismatched? Select one: O a. lymphocytes: innate immune response b.…

A: The immune system assaults and eliminates, or attempts to destroy, chemicals or germs, like bacteria…

Q: What is not true about lymphatic circulation: OA Removes excess extracellular fluid that accumulates…

A: The lymphatic system is described as the tissues, vessels, and organs network that work together to…

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: Acute inflammatory cells are ? Select one: a. ALL b. neutrophilic l c. leucocytes d. WBC

A: Inflammation is an important nonspecific defense reaction to cell injury. The hallmark signs of…

Q: Cells whose main function is in specific defenses, but not in nonspecific defenses include: O…

A: Immunity is of 2 types - specific and non specific.  Specific immunity or defence is the immune…

Q: When first exposed to a foreign molecule, are the first class of antibodies generated a. cytokines…

A: The immune response is a set of responsive mechanisms carried out by the immune system of the body…

Q: Which of the following is a function of the spleen?a. produces T cellsb. removes worn-out red blood…

A: Step 1 Lymphoid organs are those organs that function as sites of formation, multiplication, and…

Q: Which of these events is not a part of the second line of defense? You may have more than one…

A: Our body has mainly three line of defence. Defensing foreign substances is important to ensure good…

Q: Which of the following is not a goal of the inflammatory reaction?a. bring more oxygen to damaged…

A: Inflammatory reaction:                 When tissues were injured by bacteria, trauma, toxins, heat,…

Q: Which of the following is a function of the secondary lymphaticorgans?a. transport of lymphb. clonal…

A: Answer- Our immune system is composed of primary and secondary lymphoid organs.

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…

Q: Based on the information provided in Figure 22.21, what would be the likely effect of a mutation…

A: Antigens are the foreign substances that enter our body to incite an immune response. Antigens are…

Q: A B cells B. Peri-arteriolar lymphoid sheath e. Antigen-presenting cells, e.g., macrophages D.…

A: Disclaimer: Hi! Thank you for your question. As per our authoring policy, we can only author one…

Q: B Lymphocytes typically target:   a. parasitic worms   b. bacteria   c. viruses   d. intracellular…

A: they are essential for humoral immunity they are known as memory cells plasma cells are mature B…

Q: Protein receptors found on macrophages that recognize foreign antigens a. toll-like receptors…

A: Macrophages are a type of white blood cell that takes part in protecting the body against foreign…

Q: Which of the following characteristics apply to this white blood cell 1.  # 4 in frequency 2.  may…

A: White blood cells are part of the immune system and respond to invasion of body by a pathogen or…

Q: What do neutrophils do that macrophages also do? OA. antigen presentation O B. degranulate OC.…

A: Neutrophils are white blood cells which are found in great amount and it acts where the infection…

Q: When endogenous antigens "blend in"( i.e establish a presence on the cell membrane) between the…

A: An antigen is a molecule that stimulates the production of an antibody to generate an immune…

Q: How do these 2 B lymphocytes differ and what could explain why they are different?

A: The B Cells or Lymphocytes are important immune cells that help the body in fighting infections…

Q: Which statement about B-cell receptors (BCR) is true?

A: The immune system of the body is the system that is responsible for providing protection to the body…