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Exam-N5315 Test 2 Questions & Answers 100% Solved
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Exam-N5315 Test 2 Questions & Answers 100% SolvedWhat do CD4/helper T cells do? Correct-Activate macrophages, B-cells, cytotoxic T-cells,
and other CD4 cells
What is released by Th1 and what does it do? Correct-Releases IL2 and activates cytotoxic
Tcells
What does CD4 bind to? Correct-MCHII
What is released by Th2 and what does it do? Correct-Releases IL4 and binds to B cells and
activates them
What does CD8 bind to? Correct-MHC1
Humoral immunity involves what cells? Correct-B cells
Cell Mediated Immunity involves what cells? Correct-T cells
Active acquired immunity Correct-results from actual exposure to a pathogen
, Exam-N5315 Test 2 Questions & Answers 100% Solved
Passive acquired immunity Correct-Does not involve the host's immune response.
Transferred to recipient
- immediate, short lived immune response
- only last a few months
Antigen Correct-a toxin or other foreign substance that induces an immune response in the
body. Can react with antibodies or antigen receptors on B and T cells
What do plasma cells do? Correct-produce antibodies
IgG Correct--Most common antibody
-Binds with viruses, bacteria, toxins, and macrophages
-Primary antibody in SECONDARY immune response
-Only antibody that crosses placenta
IgE Correct--Binds to mast cells, eosinophils, and basophils
-parasitic infections and hypersensitive reactions
, Exam-N5315 Test 2 Questions & Answers 100% Solved
-allergies/allergens
IgM Correct--Main immune globulin produced in early PRIMARY immune response.
-High levels indicate recent infection
IgA Correct--Main immune globulin found in secretions and mucous membranes.
-Prevents invaders from attaching to mucous membranes
IgD Correct--Signals B-cell activation
-Found on the surface of B-lypmhocytes
Mast cells Correct-Release histamines, leukotrienes, prostaglandins, platelet-activating
factor, chemotatic factors, and cytokines
Histamine 1 Correct--Promote inflammation
-Found on smooth muscles cells
*broncoconstriction
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