Term
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Definition
| Unicellular gorwth form of funig.. Appear spherical to ellipsoidal. Reproduce by budding. |
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Definition
| When yeast buds (from reproduction) do not separate, they can form long chains of yeast cells |
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Definition
| THreadlike, branchinkg, cylindrical tubules of composed of fungal cells attached end to end. Grow by extendding in length from the tips of the tubules |
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Term
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Definition
| AKA Mycelia= Multicellular colonies composed of clumps of intertwined branching hyphae. Molds grow by longitudinal extnesion and produce spores |
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Term
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Definition
| Reporducing bodies of molds. Rarely seen in skin scrapings |
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Term
| Whar are Dimorphic fungi? |
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Definition
| Fungi that can grow as either a yeast or mold, depending on environmental conditions and temperature. Usually growing as yeast at body temperatures. |
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Term
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Definition
| Fungi that live in and utilize organic matter (soil, rotten vegetation) as an energy source. |
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Term
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Definition
| Main sterol in Fungai. Majority of antifungal agents disrupt this sterol y binding to it and therby punching holes in fungal wall . |
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Term
| What fungi cause superficial Fungal infections? |
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Definition
1) Pityriasis versicolog--> hypo or hyperpigmented patches on the skin 2) Tinea Nigra--> Cause dark brown to black painless pathces on soles of hads and feet |
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Term
Which group of fungi produce Cutaneous Fungal infections of the skin, hair, and nails? Name some of the infections they cause. |
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Definition
The Dermatophytoses!!! They secrete keratinase! Cause Tinea corporis (ring worm) Tinea crusis (jock itch) Tinea pedis (athlete's foot) Tinea Capitis (scalp) Tinea Ungium (onychomycosis--> nails) thickend, discolore and brittle |
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Term
| What fungus causes Thrush or diaper rash? |
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Definition
| Candida albicans causes oral thrush, diaper rash, and candida vaginitis. |
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Term
| How do Subcutaneous fungal infections gain entrance? |
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Definition
| Usually gain entrance to skin via trauma. |
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Term
| What Fungi cause systemic Fungal infections? |
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Definition
1) Histoplasma 2) Blastomces 3) Coccidioides immitis 4) Paracoccidioides Brasilens |
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Term
| what are some of the characteristics of the the fungi that cause sstemic diseases in humans? |
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Definition
1) all are dimorphic-- grow as mycelial forms at 25C (and release spores) on agar, but at 37C grow in yeast form 2) Have a certain geography niche 3) Acquired by inhalation (never transmitted person to person) usually spores are aerosolized from soil, bird droppings, or vegetation affect Lung, skin, bone and Meniges |
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Term
| What are the geographical niches of the fungi that cause systemic disease? |
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Definition
1. Histoplasma and Blatomyces are endemic to Missippi River 2. Coccidioides is endemic to SW Us and North Mexico |
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