Term
properties of fungi:
yeast |
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Definition
large oval cells that divide by budding, may show as pseudohyphae, but they are not really hyphae
candida |
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Term
properties of fungi:
hyphae
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Definition
found in molds (i.e. aspergillus) these are long filamentous structures which are hollow and multinucleated, or septate
masses of this without branching would be called mycelia |
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Term
properties of fungi:
conidia
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Definition
the spores hyphae produce above the surface, the size and shape of which are used to speciate bacteria
asexual reproductive elements |
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Term
| morphology differences of histoplasma capsulatum? |
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Definition
has a yeast like morphology in the human body and a hyphae morphology at room temperature
this is refered to as dimorphism |
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Term
| components of a fungal cells wall and membrane |
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Definition
wall has chitin and glucan
the membrane has sterols zymosterol and ergosterol (like our cholesterol)
ØEchinocandins block the sunthesis of glucan and include: Caspofungin, Micafungin, Anidulafungin |
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Term
| difference between endo and ectothrix? |
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Definition
endothrix are often trichophytons and invade the interior of the hair shaft
ectothrix grow inside hair shaft, but produce an external sheath of spores |
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Term
| difference between saprolytic phase and parasitic phase of a systemic mycoses? |
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Definition
in coccidioides immitis, for instance, the saprolytic phase is when the spores (arthroconidia) are living on dead things and are capable of infecting
once the spores are inhales, the parasitic phase is when the spherules grow and contain endospores, which eventually burst and cause the formation of more spherules in a cycle |
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Term
| cutaneous manifestions of coccidomycosis |
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Definition
•1. Toxic erythema consisting of a maculopapular rash.
•2. Erythema nodosum (typically over the lower extremities).
•3. Erythema multiforme (usually in a necklace distribution). |
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