What is mhc - Study guides, Class notes & Summaries

Which of the following is not a secondary lymphoid organ? A. Spleen B. Thymus C. Lymph nodes D. Liver E. Tonsils - ACCURATE ANSWERThymus Primary lymphatic organs are where lymphocytes are formed and mature. Stem cells to divide and mature into B- and T- cells: There are two primary lymphatic organs: the red bone marrow and the thymus gland. Which of the following is not a component of the reticuloendothelial cell system? A. Microglial cells B. Kupffer cells C. Langerhans cells D...

A vaccine that only includes subunits involves? - Soluble Antigens Adjuvants boost response how? (2 ways) - boost responses by "irritating" immune system OR clumping antigens After a threat has been neutralized, what happens to Tc cells, Th1 cells and Tm cells? which are cloned/live how long? - Cloned Tc cells and Th1 cells die (short-lived) Memory T-cells (Tm) live forever (do not have a set life span for apoptosis to occur) After a threat is over, what occurs during a second exposure...

What is a pathogen? ~~> A microorganism that causes disease e.g. bacteria, fungi, virus, parasite For an effective immune response the immune system must... ~~> - be able to recognise and respond to any invading organism - not over react to benign or self - be able to direct different effector mechanisms against different pathogens What is specific/adaptive immunity? ~~> - it is induced by exposure to a particular infection - shows a high degree of specificity - exhib...

Immunology- Block 1 Exam Questions With Answers Pattern Associated Molecular Patterns (PAMPs) molecules shared by groups of related microbes that are essential for the survival of those organisms Ligand any molecule or atom which binds reversibly to a protein Epitope smallest molecular structure recognized by a specific receptor Dendritic Cells, Macrophages, B Cells What are the professional APCs? Peripheral Tolerance of T Cells Auto reactive lymphocytes are kept anergi...

BMD430 L8 The MHC and Antigen Presentation Exam Practice Questions and Answers 100% Pass What are the three functions of the innate immune system? - ANSWER-1. Physical and Chemical Barriers to Infection 2. Cellular Responses to Infection 3. Activation of Adaptive Immune System Why is the MHC necessary? - ANSWER-For the activation of T cells What are the similarities and differences between the BCR and TCR (particularly as they related to the MHC?) - ANSWER-Similarities: - Both have heav...

NBCE Part 1 - Microbiology test questions and answers 2024 Type 1 hypersensitivity is ________________. - answer-anaphylactic (immediate) **ie. bronchial asthma, bee sting, hay fever -- allergies** What antibody & cells are associated w/ Type 1 Hypersensitivity? - answer-IgE, mast cells, basophils Mast cells makes ________________. - answer-histamine Type 2 hypersensitivity is ________________. - answer-cytotoxic What is erythroblastosis fetalis? - answer-occurs when t...

[WARNING: INVALID] 1. What does this experiment tell us? Choose ALL that apply. A. Both B cells and T cells can produce antibodies. B. Both B cells and T cells have memory functions. C. Both B cells and T cells are required for an antibody response. D. B cells are required for an antibody response in the absence of T cells. E. B cells and T cells are co-localized and produce synergetic effects in bone marrow and thymus. correct answersanswer: c type: x 2. In 2090, a human popula...

The AIRE protein is essential for proper ______ selection a)clonal b)positive c) negative - negative Where are the dendritic cells located in the thymus a)cortex only b)medulla only c) cortex and medulla - medulla only TOPIC 12 REMEMBER: Cortex: immature thymocytes, some macrophages, cortical epithelial cells Medulla: mature thymocytes, medullary epithelial cells, dendritic cells, macrophages Which of the following is easier for developing B cell to accomplish? a)Ig light ch...

MCMP 442 Final Exam Questions and Answers 100% Pass Which of the following statements is FALSE regarding the adaptive immune system or the innate immune response? a. The adaptive system responds before the innate response during an infection b. Somatic recombination only occurs in the adaptive response and NOT in the innate response c. The adaptive response will produce proteins that bind more specifically to a pathogen compared to the innate response d. The innate response involves the...

What is the hapten-carrier effect? correct answer: Small-molecule antigen requires covalent linkage to a larger carrier to stimulate adaptive immune response. The process is achieved in collaboration between hapten-specific B cells and carrier-specific T cells. This is the basis of developing conjugated vaccines. What are the common superantigens and related diseases? correct answer: SEB and SEC from Staphylococcus aureus cause food poisoning. TSST from Staphylococcus aureus and SPE-C from ...