Term
|
Definition
-multi cellular (intestinal/tissue)
-sexual reproduction
-digestive, execretory, nervous
-requires intermediate and definite host |
|
|
Term
|
Definition
-nematodes (roundworms/intestinal)
-cestodes (tapeworms/intestinal)
-trematodes (flukes/tissue) |
|
|
Term
|
Definition
-required a high worm burden
-no direct human human transmission
-adult worm infections not eliminated by host response (respond to eggs/larvae/antigens) |
|
|
Term
|
Definition
-ingestion or penetration with eggs/larvae
-topical/subtopical
-socioeconomic conditions
-food practices and consumption
-live in intestines and deeper tissue
-release eggs in fecal material; no replication in host (exception Strongyloides) |
|
|
Term
|
Definition
-tapeworms
-true parasite
-no vascular, respiratory, digestive system
-absorb nutrients across surface
-scolex
-strobila
-proglottids
- |
|
|
Term
|
Definition
| -head with sucking discs for attachment |
|
|
Term
|
Definition
|
|
Term
|
Definition
-hermaphroditic reproductive units
-sheds eggs through terminal |
|
|
Term
|
Definition
-eggs in pork, beef, fish
-undercooked meat releases in intestine
-can last 25 years and 10 meters |
|
|
Term
|
Definition
-Mebendazole-wide spectrum
-bind and interfere with glucose uptake and MT polymerization
-selective for nematodal isoform of B-tubulin |
|
|
Term
|
Definition
-formation of pores, disrupt membrane
-inhibit ergosterol synthesis |
|
|
Term
|
Definition
| -inhibit synthesis of lanosterol (precursor of ergosterol) |
|
|
Term
|
Definition
-ascaris
-enterobius
-taeniasis |
|
|
Term
|
Definition
-nematode acquired by ingestion of embryonic eggs
-produce intestinal/bilary obstruction, peritonitis |
|
|
Term
|
Definition
-nematode acquired by ingestion of embryonic eggs
-causes itching of perianal or genital region |
|
|
Term
|
Definition
-cestode acquired by ingestion of larval cysts
-beef, pig, fish reservoirs
-typically asymptomatic |
|
|
Term
|
Definition
-roundworms
-complex body
-separate sexes
-directly penetrate or passed on thought intermediate host |
|
|
Term
|
Definition
-large roundworm
-eggs must incubate in soil
-coughed up in lungs then swallowed
-pneumonia like symptoms |
|
|
Term
|
Definition
-pinworm
-infective eggs on perianal skin
-no incubation needed |
|
|
Term
|
Definition
| -praziquantel-increases permeability of cell membrane to calcium resulting in paralysis and contracture |
|
|
