Eukaryotes Flashcards
What type of inflammatory rxn?
Multicellular parasites
Eosinophilic
What type of inflammatory rxn? Protozoans
Lymphocytic
What type of inflammatory rxn? Fungi
Granulomatous
What are the two forms of fungi?
- Yeast - round, often budding
- Hyphae - elongate, filamentous, often branching
What form of fungus predominates at lower temps and superficial sites of infection?
Hyphae
What form of fungus predominates at higher temps and deep sites of infection?
Yeast
What stain is used for fungi? What color are they with this stain?
GMS - fungi are black on green bkgd
What fungal infection causes athlete’s foot and jock itch? What form of fungus is it?
Dermatomycosis
Hyphae (superficial infection)
What surfaces do superficial infections involve?
Skin, mucosa of GI or GU systems
What is thrush?
Candida infection of mouth or pharynx affecting mucosa of GI
What surfaces do deep fungal infections involve?
Viscera
Cryptococcus - deep or superficial fungal infection?
Deep
What does cryptococcus have as a defense against immune system?
Capsule
Coccidioidomycosis - deep or superficial fungal infection?
Deep
How is coccidioidomycosis infection acquired?
Inhaled - infects lungs first, then spreads to other organs
What fungal infection involves small intracellular yeast forms
Histoplasmosis
Immunocompromised individuals are prone to _____ _____fungal infection.
Deep visceral
T or F. Protozoans can be extracellular OR intracellular.
T
Protozoans have a prominent _____ and _____ except for intracellular forms b/c they’re too little.
nucleus, nucleolus
What protozoan often causes disease in immunosuppressed patients?
Toxoplasmosis
What type of organism causes African sleeping sickness?
Protozoans
What is the name of the organism that causes Chagas/Trypanosomiasis?
T. cruzi - intracytoplasmic protozoan
What are metazoans?
Multicellular eukaryotic organisms- parasites!
Name four examples of parasitic worms (endoparasites).
- Tapeworms (intestinal parasites) that can enter systemic circulation - cysticercosis
- Flatworms
- Thread-like worms
- Flukes (Shistosomiasis)
Name three examples of surface parasites (ectoparasites).
Ticks, fleas, lice
T or F. Metazoans are easier to treat if on surface (skin) or in GI tract
T
What treatment options are there for metazoans?
Insecticides on skin, anti-helminthic drugs that paralyze parasite in GI tract
What pig tapeworm may infect the brain and other organs and is a common cause of epilepsy in Central/SA and India?
Neurocysticercosis
