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24 Cards in this Set
- Front
- Back
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candida is what kind of pathogen?
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opportunistic
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what chemical do antifungals go after?
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ergosterol
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fungal cell wall is made of:
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peptidomannan, glucan, chitin, etc.
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sexual or asexual seen in humans?
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asexual
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what are 2 major methods of tissue infection
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mechanical introduction or inhalation of spores
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hyphae or yeast, which can be invasive? what can occur?
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hyphae; necrosis/infarction
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major cause of true pathogens?
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resistance to phagocytosis
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histoplasma capsulatum in tissue yeast form can do what?
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multiply within macrophages
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what media used for culture?
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sabouraoud's agar
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what are the 2 definitive means of identification?
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observation of septation and type of spores in mold state; carbohydrate assimilation test
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what is an example of thermal dimorphism?
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dual culture at 25 and 37 degrees; growth as yeast is candida, as mold is aspergillus
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what usually causes tinea capitis?
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trichophyton tonsurans
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under woods lamp, what will glow?
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microsporum
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polyenes, azoles, triazoles, and allylamines are what drugs?
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ergosterol synth. drugs
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zygomycota has what opportunistic spore? problems seen in what pt?
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rhizopus; surgical
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candida fall under what type of fungi?
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mitosporic
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most true fungal pathogens are yeasts or molds? exception?
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yeasts; aspergillus
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most pathogens are yeasts at what temp? molds? this is called?
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37; 25; thermal dipmorphism
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tineas attack what layer?
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cutaneous
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systemic mycotic agenst are what?
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inherently virulent
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how are systemic mycotic agents acquired?
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inhaled
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asexual fungi are called? sexual?
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conidia; spores
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histoplasma is part of what group?
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ascomycota
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cryptococcus is part of what group?
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basidiomycota
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