Unit 4 Worms and Worm Medication Flashcards
1
Q
Malaria
A
- upon infection from a mosquito, sporozoites primarily infect liver
- production of merozoites from liver can infect RBCs
- mosquitos become infected by drinking blood of infected human
- P. vivax, P. ovale, P. malariae, and P. falciparum (causes most deaths)
- sexual phase occurs in mosquitos
- most common cause of death is multiorgan failure due to hypoxia and anemia
- dx: blood test or rapid test
2
Q
Schistosomiasis
A
- katayama fever is associated with worm maturation and laying of eggs
- transmitted to humans with exposure to infected fresh water
- trematodes/flatworms
- eggs shed in feces or urine of infected humans
- eggs hatch in water and released miracidia infect snails
- sporocysts in snails release cercariea that can penetrate skin of humans (swimmer’s itch)
- in human it is called schistosomulae
- sexual reproduction occurs in human (katayama fever)
- dx: stool or urine sample
3
Q
parasite
A
-an organism which lives upon or within another living
organism at whose expense it obtains some advantage
4
Q
helminths
A
- worms
- roundworms/nematodes
- flatorms/trematodes/flukes
- tapeworms/cestodes
5
Q
protozoan parasites
A
- unicellular eukaryotes
- amebas
- flagellates
- ciliates
- sporozoa
- microsporidia
6
Q
metazoa
A
-multicellular eukaryote
