Test 5 Flashcards
Which body region is affected by the following tineas?
A. Unguium
B. Capitis
C. Manum
D. Corporis
E. Pedis
F. Barbae
G. Cruris
A. Toes
B. Head
C. Hand
D. Chest ( anywhere on the body)
E. Feet
F.beard
G. Groin down there
What is the specific dermataphyte that causes tinea versicolor?
Malassezia furfur
What is the name of the fungal division that produces asexual sporangiospores?
Zygomycota
Many protozoans have a reinforced cell membrane called a______
Pellicle
______hyphae lack cross walls called________.A group of hyphae is referred to as a________
- Aseptate
- Septa
- Mycelium
________yeasts have symmetric division while budding yeasts have asymmetric division.
Fission
Define:
monoecious
dimorphism
Monoecious: refers to female and male on the same worm
Dimorphism: existence of two different forms within the same species
What are the 3 genera of dermataphytes that cause tineas?
Microsporum, eidermophyton, trichophyton
Diagram the life cycle of plasmodium
Mosquito salivary glands-bite-blood stream-liver-invade-liver cells - change forms- reproduce - blood stream- invade -red blood cells- CF+R- mosquito bite - mosquito gut-invade gut lining- CF+R
- Diagram the life cycle of Ascaris.
Ingest eggs-G1tract-circulatory lymphatic- heart-lungs-trachea-pharynx-swallowed- G1tract
What are the 2 advantages we discussed for having different life stages in different host species?
There is lack of competition and not depending on a single host species for survival
Define:
Intermediate host
Definitive host
Intermediate host: immature or large stage of the worm
Definitive host: reproductive stage of the worm
What is the mode of motility for the following?
A. Ciliophora
B. Sarcodina
C. Mastigophora
A. Cilia
B. Pseudopodia
C. Flagella
Cestodes lack a digestive system entirely while nematodes have a _______digestive system.
Complete
What makes it acceptable for some parasitic helminthes to have a reduced nervous system?
Their parasitic lifestyle
List the 4 fungal divisions and give their sexual and asexual spore types.
Division 1. Zygomycota sex-zygo asexual- sporangio conidis)
Division 2. Ascomycota (ascos , conidis)
Division 3. Basidiomycto ( basidio, sometimes conidis)
Division 4. Deuteromycota (sex-none, asexual spores or fragment)
Fungal meningitis
CA: Coccidiodes immitis & crytpococcus neofarmans
MOT: oral
Pneumocystic pneumonia
CA: pneumocystis jiroveci
MOT:Oral
Fungal vaginitis-
CA:Candida albicans
MOT:sexual contact
Giardiasis
CA:Giardia lamblia MOT:fecal oral
Leishmanias
CA: Leishmania SPP. MOT: Sandfly
Ameboic dysentary
CA:Entamoeba histolytica
MOT:fecal oral
Chagas disease
CA: Histoplasma
Meningioencephalitis (protozoan)
CA: Acanthamoeba Spp & Naegleria Fowleri
MOT:swimming
