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5
×
what do CD4+ helper T cells release?
cytokines
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5
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Describe the skin lesions seen in Toxicodendron Dermatitis
forearm with erythematous vesiculbollous plaques and moderate excoriation
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monster
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seesaw
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fairy
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25
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baam
Lose 5 points!
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5
×
How do you prevent toxicodendron dermatitis?
Wear protective clothing, heavy gloves while gardening, washing contaminated clothes
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5
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What is cell mediated immunity?
adaptive immunity which is mediated by activated, antigen-specific T cells
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5
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Small and large blisters (vesicles and bullae) from Toxicodendron dermatitis are prone to what complication?
Such lesions are prone to bacterial superinfection, which produces a yellow crust (impetiginization).
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5
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What type of dermatitis is Toxicodendron dermatitis?
Contact Dermatitis (allergic contact)
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heart
Other team wins 5 points!
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rocket
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gift
Win 20 points!
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thief
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5
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what type of cell responds to the haptens going through the skin?
Langerhan cells (APC -antigen presenting cell)
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5
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What is a hapten?
low molecular weight antigen
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baam
Lose 15 points!
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shark
Other team loses 10 points!
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gift
Win 10 points!
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lifesaver
Give 5 points!
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5
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What is the sensitization phase in allergic contact dermatitis?
Haptens penetrate epidermis->activate langerhan cells->lymph nodes->activate naive T cells
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5
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what type of immune cell kills the urushiol?
killer T cells
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5
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Describe basic structural components of an antibody
Light chain, heavy chain, variable region, constant region
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5
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what is the offending allergen in Toxicodendron?
Urushiol oil
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heart
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seesaw
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fairy
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25
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thief
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