pamela18 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
What is Mycology? | Study of fungus |
What are fungi? | microorganisms that include molds, yeast, and mushrooms |
Mycoses | fungal diseases |
How are mycoses classified | by the tissue or body site infected |
Superficial | outermost layers of skin |
cutaneous | keratin in skin, hair, and nails. causes inflammation in the skin |
subcutaneous | soft tissue, muscles, and bones immediately below the skin |
systemic | involve deep tissue and organs of the body |
Transmission of fungi | often inhalation of spores or through a puncture wound |
fungi are | eukaryotic |
Pigment may appear in what 3 places | top of colony (surface pigment), underside of colony(reverse pigment), diffused into media (diffusible pigment) |
Rugose | have furrows radiating from the center to the edge of the colony |
umbonate | raised center but may also exhibit furrows around the central button |
verucose | wrinkled surface |
textures | wooly/cottony, granular/powdery, velvety, glabrous |
wooly/cottony | dense, high aerial mycelium |
granular/powdery | very flat mycelia but produce numbers of conidia |
velvety | low, very dense aerial mycelia |
glabrous | no aerial mycelium, fungi, and yeasts will have a waxy appearance |
Sexual spores | Ascospores, Zygospores, basidiospores |
asexual spores | Sporangiospore, and Conidiospore |
aseptate | without cross walls |
septate | with cross walls |
mycelium | mass of hyphae |
conidia | asexual spores |
conidiophore | support structure for conidia |
Superficial mucoses | infections limited to the outermost layers of the skin and hair |
cutaneous mycoses | infections that extend deeper into the epidermis, as well as invasive hair and nail diseases |
dermatophytes | homogenous group of fungi that cause a variety of infections of hair, skin & nails |
Tinea capitis | ringworm of scalp |
Tinea corporis | ringworm of trunk, arms, and legs |
Tinea cruris | Jock itch-ringworm of groin |
Tinea pedis | athletes foot. ringworm of foot |
Tinea ungulum | infection of nails |
Ectothrix | infection of hair shaft surface |
endothrix | infection of hair shaft interior |
Urease | T.mentagrophytes:(+)within 7 days T.rubrum: (-) |
in vitro hair penetration | T. mentafrophytes (+) T.rubrum (-) |
growth in polished rice grains | M.audouinii: no growth other microsporum species: growth |
growth on trichophyton agars | T.violaceium, T.verrucosum, T.tonsurans: enhanced with thiamine (agar#4) |
tinea | ringworm |
3 genre of dermatophytes | Microsporum, Tichophyton, and Epidermophyton |
subcutaneous mycoses | infections involving the dermis, subcutaneous tissues, muscle & fascia |
Initiated by trauma to the skin and difficult to treat | subcutaneous mycoses |
systemic mycoses | originate primarily in lungs and may spread to other organ systems |
What is the best specimen | direct smear: some fungi can only be distinguished by micro appearance |
Methods of direct exam methods | KOH, Calcofluor White Stain, India Ink Prep, Alcian Blue/Mucicarmine stains |
Histology stains | PAS, Methenamine Silver Stain, H&E, Modified Acid Fast, Giemsa, Papanicolaou stain. |
Molds grow best in | ambient air (room temp) |
Nutritionally rich media | asexual spores |
poor nutrition media | sexual spores |
Created by:
pamela18
Popular Laboratory Science sets