Microbiology lecture final exam -Owens - with Chamberlain. Questions and answers. Rated A+

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Microbiology lecture final exam -Owens - with Chamberlain. Questions and answers. Rated A+ What causes allergic reactions? - Ans-Allergens - which are just an antigens. What are the four (4) class... es of hypersensitivity? - Ans-1) Type I- atopic allergies 2) Type II- cytotoxic auto immunities 3) Type III - Immune complex disease 4) Type IV - Delayed hypersensitivity Which are the four (4) classes of hypersensitivity are mediated by B cells? - Ans-1) Type I- atopic allergies 2) Type II -cytotoxic auto immunities 3) Type III- Immune complex disease Which of the four (4) classes of hypersensitivity are mediated by T cells? - Ans-1) Type IV ***ONLY*** Which of the categories would you find delayed hypersensitivities? - Ans-1) Type IV What re some types (example) of delayed hypersensitivity? - Ans-1) Poison ivy 2) Poison oak 3) Sumac 4) All parts of contact dermatitis What is a sensitizing dose is? - Ans-1) First contact 2) Exposure to the allergen which is sensitizing your immune system to it. 3) You don't have a response Provocative dose - Ans-1) 2nd contact with an allergen. 2) When you have a response.3) Example: a) Hives b) watering eyes c) Sneezing d) Running nose What are the chemical mediators of tissue damage? - Ans-1) Histamine 2) Serotonin 3) Leukotriene 4) Prostaglandins 5) Bradykinin What do the chemical mediators do or are responsible for? - Ans-1) Vasodilation , vasoconstriction 2) Inflammation 3) Increased mucous production 4) Increased sensitivity to pain 5) Increased permeability of capillaries Things we would NOT typically see with an allergic reaction? - Ans-1) Accelerated respiratory rate 2) Accelerated heart rate 3) Fever Things we would typically see with an allergic reaction? - Ans-1) Wheel and flare 2) Runny nose 3) Watery eyes 4) Anaphylaxis shock What are the clinical signs and symptoms of allergic reactions? - Ans-1) Rashes 2) Sneezing 3) Redness 4) Itching 5) Swelling6) Warm to the touch 7) Inflamed What is autoimmunity? - Ans-1) Hypersensitivity to self ( Your own tissues) What are the two forms of anaphylaxis? - Ans-1) Systemic - Example 2) Cutaneous Systemic anaphylaxis - Ans-1) Sudden respiratory and circular disruption. 2) Example: a) Bee sting b) Penicillin 3) Death can occur via: a) asphyxiation b) Reduces blood pressure c) Circulatory shock 4) Worst case scenario Cutaneous anaphylaxis? - Ans-Inflammatory reaction to a local injection of an allergen. 2) Example: a) After a second injection of a vaccine we get with the TB test, looking for response. What are two types of response? - Ans-1) Localized response 2) Systemic or wide spread response What is systemic or wide spread response? - Ans-1) System wide 2) Major outpouring of all the chemical mediators 3) Results in potential death What are the types of transplants? - Ans-1) Autograft 2) Isograft 3) Allograft 4) XenograftWhich of the following describes a transplant between identical twins? - Ans-ISOGRAFT Which of the following transplants one part of the body to another on the same person? - AnsAUTOGRAFT Example: 1) Remove skin from one area to cover another 2) No rejection Which of the transplants, transplant between genetically different people, but within the same species? - Ans-ALLOGRAFT 1) Most are this type of transplant 2) Differing degree of rejection 3) Requires tissue typing Which transplant between different species? - Ans-XENOGRAFT Example: 1) Human receives a pig heart valve 2) Major tissue differences 3) Great deal of rejection [Show More]

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