Homework Answers
Answer:(b) histamine is correct.
Reason:
When infection occurs, bacteria enters into the body and defense mechanism will develop in our body against the bacteria,so inflammation process occurs.In that inflammation process,first step is to release the inflammatory mediators and mast cells secret preformed mediators (histamine, proteases and cytokine.
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QUESTION 25 The preformed mediators that are released from mast cells...
is this the correct answer? QUESTION 9 Preformed mediators that are released during the activation phase...
is
this the correct answer?
QUESTION 9 Preformed mediators that are released during the activation phase of a Type I Hypersensitivity response include which of the following? O a. cyclooxygenase Ob. Prostaglandin O c. Histamine d. Leukotriene 1 po QUESTION 10 How are cytotoxic T cells and natural killer cells similar? O. Both induce apoptosis in the target cell. O Both need Ab activation O Both have an antigen-binding site that recognizes conformational cpitopes Both express CD8 1 poit HECTION...
Question 10 The following cells are mediators in type I hypersensitivity reactions Mast cells OA. ОВ....
Question 10 The following cells are mediators in type I hypersensitivity reactions Mast cells OA. ОВ. Neutrophils Ос. T cells OD. Basophyls O E A and D are correct OD. B cells; T cells, and NK cells Question 6 The following are lymphocytes NK cells B. B cells, T cells, NK cells, and monocytes B cells ОА. Ос, T cells OE. B cells and T cells OF.
The following cells are mediators in type 1 hypersensitivity reactions Mast cells OA. Neutrophils ОВ. T...
The following cells are mediators in type 1 hypersensitivity reactions Mast cells OA. Neutrophils ОВ. T cells OC. Basophyls OD OE. A and D are correct Question 3 The following statement regarding hypersensitive reactions is correct It is caused by the first exposure to an antigen ОА. ОВ. it involves cellular immunity only C. It involves antibodies only OD. it can be triggered by exposure to antibodies O E. All of the above statements are false
Question 46 3 pts Which of the following are chemical mediators? O mast cells O macrophages...
Question 46 3 pts Which of the following are chemical mediators? O mast cells O macrophages histamines Question 47 3 pts Which of the following is NOT found inside lymph nodes? blood Olymph sinuses macrophages Olymphocytes Olymph fluid
QUESTION 5 Which of the following is CORRECT? Only IgG and IgM can result in complement...
QUESTION 5 Which of the following is CORRECT? Only IgG and IgM can result in complement fixation or activation. The initial response to an antigen produces more antibodies than the second or subsequent exposures. The initial response to an antigen is more rapid than the second or subsequent exposures. Only IgG can cross the placenta. IgM and IgE are both pentamers. They can bind 10 antigens. The antibodies all have different variable regions by same constant regions QUESTION 6 Select...
QUESTION 6 Select the INCORRECT pairs. Histamine, bradykinin, leukotrienes do not cause constracction of smooth muscles....
QUESTION 6 Select the INCORRECT pairs. Histamine, bradykinin, leukotrienes do not cause constracction of smooth muscles. Immune complex mediated hypersensitivity - Type III hypersensitivity graft rejection - example of type IV hypersensitivity Type IV - T cell or delayed hypersensitivity The tuberculin or PPD test is an example of Type Ill hypersensitivity reaction. Type 1 hypersensitivity - Involves IgE and is immediate. Example is anaphylaxis. QUESTION 7 Which of the following pertain only to exotoxins? Toxic in very small amounts...
Question 9 A safer vaccine for the Ebola virus will be a ОА. Live attenuated vaccine...
Question 9 A safer vaccine for the Ebola virus will be a ОА. Live attenuated vaccine ОВ. subunit vaccine VLP vaccine O d. conjugate vaccine OE. All except A The following cells are mediators in type I hypersensitivity Mast cells OA. Neutrophils OB. T cells Ос. OD Basophyls A and D are correct OE
A 48-year-old male patient arrives at the hospital after being rescued from a car accident in...
A 48-year-old male patient arrives at the hospital after being rescued from a car accident in which he suffered a serious hemorrhage. He needs a blood transfusion to stabilize. Blood typing test discovers he is A+, Which of the following blood types can he receive? Check all that apply. Check All That Apply A+ and A- B+ and B- AB+ and AB- O+ and O- Please match the description to the type of hypersensitivity. 1. acute reaction to an allergen...
answer questions 1-3 Question 1 Which T cells are very active with Type 1 hypersensitivity? T8...
answer questions 1-3
Question 1 Which T cells are very active with Type 1 hypersensitivity? T8 - CD 25+ Th1 Th2 Question 2 Localized scleroderma is characterized by only one or two hard patches on skin. o True False Question 3 What is a positive tuberculin skin test? autoimmunity o a delayed type hypersensitivity reaction O acute contact dermatitis O eczema
Which of the following is true of B cells? Select one: a. They differentiate into macrophage...
Which of the following is true of B cells? Select one: a. They differentiate into macrophage b. They present antigens c. They are responsible for cell mediated immunity d. They secrete cytokines Suppose an individual has impaired histamine release from mast cells. This individual may have lower levels of which antibody class? Select one: a. IgA X c. IgE d. IgM Identify the component that is NOT part of innate immune defenses. Select one: a. skin b. cytotoxic T cells...
is
this the correct answer?
QUESTION 9 Preformed mediators that are released during the activation phase of a Type I Hypersensitivity response include which of the following? O a. cyclooxygenase Ob. Prostaglandin O c. Histamine d. Leukotriene 1 po QUESTION 10 How are cytotoxic T cells and natural killer cells similar? O. Both induce apoptosis in the target cell. O Both need Ab activation O Both have an antigen-binding site that recognizes conformational cpitopes Both express CD8 1 poit HECTION...
Question 10 The following cells are mediators in type I hypersensitivity reactions Mast cells OA. ОВ. Neutrophils Ос. T cells OD. Basophyls O E A and D are correct OD. B cells; T cells, and NK cells Question 6 The following are lymphocytes NK cells B. B cells, T cells, NK cells, and monocytes B cells ОА. Ос, T cells OE. B cells and T cells OF.
The following cells are mediators in type 1 hypersensitivity reactions Mast cells OA. Neutrophils ОВ. T cells OC. Basophyls OD OE. A and D are correct Question 3 The following statement regarding hypersensitive reactions is correct It is caused by the first exposure to an antigen ОА. ОВ. it involves cellular immunity only C. It involves antibodies only OD. it can be triggered by exposure to antibodies O E. All of the above statements are false
Question 46 3 pts Which of the following are chemical mediators? O mast cells O macrophages histamines Question 47 3 pts Which of the following is NOT found inside lymph nodes? blood Olymph sinuses macrophages Olymphocytes Olymph fluid
QUESTION 5 Which of the following is CORRECT? Only IgG and IgM can result in complement fixation or activation. The initial response to an antigen produces more antibodies than the second or subsequent exposures. The initial response to an antigen is more rapid than the second or subsequent exposures. Only IgG can cross the placenta. IgM and IgE are both pentamers. They can bind 10 antigens. The antibodies all have different variable regions by same constant regions QUESTION 6 Select...
QUESTION 6 Select the INCORRECT pairs. Histamine, bradykinin, leukotrienes do not cause constracction of smooth muscles. Immune complex mediated hypersensitivity - Type III hypersensitivity graft rejection - example of type IV hypersensitivity Type IV - T cell or delayed hypersensitivity The tuberculin or PPD test is an example of Type Ill hypersensitivity reaction. Type 1 hypersensitivity - Involves IgE and is immediate. Example is anaphylaxis. QUESTION 7 Which of the following pertain only to exotoxins? Toxic in very small amounts...
Question 9 A safer vaccine for the Ebola virus will be a ОА. Live attenuated vaccine ОВ. subunit vaccine VLP vaccine O d. conjugate vaccine OE. All except A The following cells are mediators in type I hypersensitivity Mast cells OA. Neutrophils OB. T cells Ос. OD Basophyls A and D are correct OE
A 48-year-old male patient arrives at the hospital after being rescued from a car accident in which he suffered a serious hemorrhage. He needs a blood transfusion to stabilize. Blood typing test discovers he is A+, Which of the following blood types can he receive? Check all that apply. Check All That Apply A+ and A- B+ and B- AB+ and AB- O+ and O- Please match the description to the type of hypersensitivity. 1. acute reaction to an allergen...
answer questions 1-3
Question 1 Which T cells are very active with Type 1 hypersensitivity? T8 - CD 25+ Th1 Th2 Question 2 Localized scleroderma is characterized by only one or two hard patches on skin. o True False Question 3 What is a positive tuberculin skin test? autoimmunity o a delayed type hypersensitivity reaction O acute contact dermatitis O eczema
Which of the following is true of B cells? Select one: a. They differentiate into macrophage b. They present antigens c. They are responsible for cell mediated immunity d. They secrete cytokines Suppose an individual has impaired histamine release from mast cells. This individual may have lower levels of which antibody class? Select one: a. IgA X c. IgE d. IgM Identify the component that is NOT part of innate immune defenses. Select one: a. skin b. cytotoxic T cells...
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