Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
63 Cards in this Set
- Front
- Back
The study of fungi is called ____
|
MYCOLOGY
|
|
Fungi may be ____ (eg YEAST) or ____
|
unicellular - multicellular
|
|
Organisms in this kingdom are eukaryotes & tend to form long filaments of cells which are called ____
|
HYPHAE
|
|
When the fungus grows into an intertwined mass of hyphae which are visible to the naked eye its structure is referred to as a ____
|
MYCELIUM
|
|
The cross walls separating cells within a hypha are called ____
|
SEPTA
|
|
Fungi whose cells grow in one continuous structure without any septa but with many nuclei are referred to as ____
|
COENOCYTIC
|
|
They obtain their food from organic matter & are ____
|
HETEROTROPHS
|
|
They require less ____ than bacteria
|
NUTRIENTS
|
|
The majority live on dead organisms & are____ & able to break down tough materials such as wood lignins because of the large number of unusual ____ secreted
|
SAPROBES - EXOENZYMES
|
|
Although they can be both aerobic & facultatively anaerobic, they tend to grow on ____
|
SURFACES
|
|
They grow best in ____ conditions (pH 5) & survive dry conditions well
|
ACIDIC
|
|
Fungi are relatively unimportant ____ pathogens but virtually every important plant is attacked by one or more fungal pathogens
|
HUMAN
|
|
A fungal disease is called a ____
|
MYCOSIS
|
|
Most pathogens grow slowly & are long lasting or ____
|
CHRONIC
|
|
Fungal infections of the skin, hair & nails are called ____ while just below the skin they are referred to as ____ (____)
|
CUTANEOUS - SUBCUTANEOUS - DERMATOPHYTES
|
|
Infections in the tissues & organs are called ____ -often the result of spores inhaled into the ____
|
SYSTEMIC - LUNGS
|
|
Fungi are classified by the type of spores they produce through ____ ____
|
sexual reproduction
|
|
____ (single, large pigmented cells)
|
ZVGOSPORES
|
|
____ (spores in sac called an ascus)
|
ASCOSPORES
|
|
____ (four spores formed externally on a pedestal)
|
BASIDIOSPORES
|
|
____ OR FUNGI IMPERFECTI (a holding group -no spores found yet)
|
DEUTEROMYCETES
|
|
This is caused by pathogens from over 39 different fungal spp especially ____, ____, & ____
|
MICROSPORUM, TRICHOPHYTON and EPIDERMOPHYTON
|
|
They secrete ____ & have the ability to live on the upper skin layers, hair & nails (PROTEIN, KERATIN).
|
KERATINASES
|
|
Tinea. They tolerate ____ conditions.
|
dry
|
|
Tinea. They are spread by people/dogs/cats shedding hairs/cells onto ____ such as towels & can survive for years
|
FOMITES
|
|
Tinea. Appearance of the disease varies but skin NAILS & hair ____ are common.
|
TINEAS
|
|
Eg Tinea capitis (____) Tinea cruris (____) Tinea pedis (____) Tinea barbae (____ ____), Tinea corporis (____), Tinea unguium (____)
|
SCALP - GROIN - FEET - BARBER'S ITCH - BODY - NAILS
|
|
Tinea. None of these are serious diseases because they can't penetrate past the ____ ____ of the skin even with injury
|
STRATUM CORNEUM
|
|
Tinea. Diagnosis is by microscopic examination (____ & ____) & isolation on lab media (____ ____ ____).
|
SCRAPINGS & UV - DERMATOPHYTE TEST MEDIUM
|
|
Tinea. Treatment is usually the ____ application of ____, clotrimazole or oral ____
|
TOPICAL - TOLNAFTATE - GRISEOFULVIN
|
|
Candida albicans is an ____ which is normally present in the genitourinary tract, mouth & intestinal mucus membranes but its growth is suppressed by the ____
|
OPPORTUNIST - MICROFLORA
|
|
Agents which encourage its growth by interfering with the pH &/or bacterial flora would include ____, ____, & ____
|
ANTIBIOTICS, CONTRACEPTIVES & PREGNANCY
|
|
Patients that are ____, obese, diabetic, very young or old are likely to suffer from infections with this organism
|
IMMUNECOMPROMISED
|
|
Signs & symptoms in newborns would include ____ OVERGROWTH IN ____ ____, COATED TONGUE
|
WHITISH OVERGROWTH IN ORAL CAVITY
|
|
Women may suffer from vulvovaginal candidiasis (3/4 have at least one episode) with the signs & symptoms being … (6)
|
IRRITATION, INTENSE ITCHING, SORE REDNESS, YEASTY ODOR, THICK, YELLOW COTTAGE CHEESE
|
|
If it becomes systemic it can be ____
|
FATAL
|
|
Topical applications of ____ ____, ____ or oral ____
|
MICONAZOLEM CLOTRIMAZOLE, NYSTATIN or oral AMPHOTERICIN B
|
|
Pneumocystis Pneumonia. This disease was rare (100 cases/year) before the advent of AIDS (20,000+/year) as it is an opportunist found in the ____
|
lungs
|
|
Pneumocystis Pneumonia is caused by a microbe (respiratory system) called ____ ____
|
PNEUMOCYSTIS CARINII
|
|
Pneumocystis carinii. It has characteristics of both a ____ & a ____ & possesses a complex life cycle
|
FUNGUS & PROTOZOAN
|
|
Pneumocystis Pneumonia. Other people that are susceptible to the disease include ____ ____
|
CANCER PATIENTS
|
|
Pneumocystis Pneumonia. Treatment is ____ - ____
|
TRIMETHOPRIM -SULFAMETHOXAZOLE
|
|
Histoplasmosis. A systemic fungus of the ____ system found throughout the world
|
RESPIRATORY
|
|
Histoplasmosis. Mainly in the US States of Iowa, Minnesota, Missouri, Alabama; __% inhabitants of these states have Ab to this organism
|
75%
|
|
Histoplasmosis. ____ serious (50 deaths/year)
|
Rarely
|
|
Histoplasmosis. Grows in fecally-enriched ____ (____ and ____ droppings) filamentously & then ____ are inhaled into the lungs
|
soils - bird and bat - conidia
|
|
Histoplasmosis. The ____-like growth in the lungs causes a mild ____ infection
|
yeast - respiratory
|
|
Histoplasmosis. The X-ray of Histoplasmosis lung lesions resembles that of ____ diagnosis by __&__ & ____ ____ test
|
TB - S&S - complement fixation
|
|
Histoplasmosis. Treatment = ____ or ____
|
Amphotericin B or Ketoconazole
|
|
Coccidioidomycosis. A systemic fungus called ____ ____, which is found mainly in the American southwest, South America & Mexico causes __-__ US deaths per year
|
Coccidioides immitis - 50-100
|
|
Coccidioidomycosis. Another common name for it is ___ ____ VALLEY FEVER. Half of all experimental subjects tested in CA are +VE for a ____ ____ test!
|
SAN JOAQUIN - diagnostic skin
|
|
Coccidioidomycosis. it grows as filaments in ____, ____ soils which release ____
|
DRY, ALKALINE - ARTHROSPORES
|
|
Coccidioidomycosis. They are ____-borme & abundant in ____
|
wind - aerosols
|
|
Coccidioidomycosis. They germinate in lung tissue producing thick walled bodies called ____
|
SPHERULES
|
|
Coccidioidomycosis. The following signs & symptoms occur ____ PAIN, ____, ____, ____ LOSS
|
CHEST PAIN, FEVER, COUGHING, WEIGHT LOSS
|
|
Coccidioidomycosis. Recovery occurs within a few ____ even without ____
|
weeks - treatment
|
|
Coccidioidomycosis. Diagnosis can be tricky because of its resemblance to ____
|
TB
|
|
Coccidioidomycosis. Microbial examination of ____/____ & isolation & growth on ____ ____
|
tissues/fluids - lab media
|
|
Coccidioidomycosis. Treatment includes____ for months in serious cases
|
AMPHOTERICIN B
|
|
Fungal pathogens of plants can produce ____ which are ingested by humans
|
toxins
|
|
Claviveps purpurea a smut infection of ____ causes ergot poisoning
|
RYE
|
|
This was a common happening during the ____ ____ producing ____, twitching of the extremities, restricted blood flow & gangrene (Saint Vitus' dance)
|
MIDDLE AGES - HALLUCINATIONS
|
|
Aspergillus flavus a common mold, grows on ____ producing ____ which is a potent ____ ____
|
PEANUTS - AFLATOXIN - LIVER CARCINOGEN
|