Parasites= 8.27
- Created by: adla
- Created on: 15-03-13 14:59
View mindmap
- Parasites- 8.27
- Parasitology
- Caused
- Helminth Worms
- Protozoa- Unicellular
- Arthropod- scoropion
- Examples
- Harmless
- Headlice
- Harmful
- Malaria
- Amoebic Dysentry- intestine
- Harmless
- Caused
- Helminth
- Multicellular
- Don't replicate in the body
- Repeared infection- Eggs or Larvae
- Mate- Male to Female or Hermaphrodites
- Infection- Long duration
- Parasites of the gut
- Some worm parasites- live in blood, lymph or tissue
- Encyst in the tissues
- Cause- Physical Damage, blood loss and blockage
- Chronic inflammatory response
- Schistosomiasis/Filiariasis
- Severe- Liver Damage and Elephantitis
- Schistosomiasis/Filiariasis
- Chronic inflammatory response
- Protozoan Parasites
- Unicellular
- Replicate within the body
- Cause long lasting chronic infections
- Usually no clearance of the parasite
- Partial Immunity
- Control parasite Numbers
- Control re-infection
- Type
- Blood, Gut or tissue
- Extracellularor intracellular
- Malaria- most common global disease
- Toxoplasmosis
- Important cause of death in immunocompromised people
- Toxoplasmosis
- Arthropods
- Multicellular
- Bloodsucking
- Mosquito
- Ticks
- transmit- viral, bactieral, helminth and protist pathogens
- MIcropredators
- Only depend on the host for food not the whole life cycle
- Lice
- Rely on human host
- Close contact- transmission
- Routes of transmission
- Faecal-ral route
- Direct invasion of the skin
- Consumption of meat from infective infections
- Transmission from bloodsucking insects
- transplacental
- Sxually transmited
- Control Problems
- Sanitation
- lak of control programmes
- Inc. pop of insect vector
- Migration
- Geohelminths
- nematode worms
- Foecal-oral transmission
- Due to poor hygiene and sanitation
- Examples
- Human Whipwowm
- Trichuris
- Human Roundworm
- Ascaris
- Human Hookworms
- Necator, Ancylostoma
- Human Whipwowm
- Chronic and Ubiquitous
- Est- Half of pop
- Effects
- Growth and development of children
- Produce thousands of eggs per day
- Eggs are ingested with contaminated food or water..
- Go to gut via blood
- Found in the soil contaiminated with Faeces
- Schistosomiasis
- Adult worms
- Live in Hepatic Portal Vein
- Blood vessels surrounding bladder
- Live in Hepatic Portal Vein
- Acute infection- RARE
- Eggs- deposited in blood vessels and produce acute inflammation- to tissue damage
- Vascular wall ruptures
- Go to intestinal mucosa and lumen
- comes out as faeces
- Go to intestinal mucosa and lumen
- Vascular wall ruptures
- S.Mansoni
- Eggs don't go out and carried to the liver
- cause inflammation and granuloma
- Chronic phase of the diseas
- Hepatosplenomegaly
- Egg Granuloma- replaced by fibrosis
- Occlusion of HPV
- Egg Granuloma- replaced by fibrosis
- Hepatosplenomegaly
- Eggs don't go out and carried to the liver
- Adult worms
- Lympatic Filariasis
- Filiaril worms
- Transmitted my Mosquitos
- Adult worms live in the afferent lymph nodes
- Produce larvae
- Acute disease
- Lymphadenitis
- Groin
- Armpit region
- Lymphadenitis
- Adult worms0 accumulate in the lymph obstruct lymph flow
- Lymphoedema
- Elephantitis
- Breast
- Limbs
- Scrotum
- Elephantitis
- Lymphoedema
- Amoebiasis
- caused by Entomoaebahystolytica
- Lives in the gut
- Invade liver- liver abscess
- Transmission- cysts in faeces
- Severe- Bloody, diarrhoea and severe liver abscess- causes death
- Malaria
- Caused by PlasmodiumSpecies
- Mainly children under 5
- Transmitted- female mosquito
- associated with erythrocytic stage of parasites
- Erythrocyte bursts- Malaria antiegns are released- Rise to fever and chills
- Cerebral- most dangerous as it can block the capillaries
- Toxoplasmosis
- Between cats and warm blooded animals
- prevalence varies from place to place
- Transmitted to humans
- Ingestion of cysts fromm cat faeces
- Ingestion of cysts in uncooked meat
- Transplacentally
- In cats- lives in intestine
- affect- Nucleated cell type and muscle cells
- Intact cysts can remain for life without causing harm
- Reactivation of parasites occur in immune compromised hosts
- AiDS patients- could get encephaliltis and death
- Can be congenital
- Giardiasis
- parasitic flagellate protist
- transmission-cysts in the faeces
- Contaminate food or drinkingwater
- Asymptomatic
- Results-chronicdiarrhoea, flatulence, or maladsorption
- Trichomoniasis
- Parasitic flagellae
- Lives inhe GI tract
- Transmitted- sexual transmit
- Non-lite threatening
- Inc risk of transmission of HIV
- Premature birth weight
- Parasitology
Comments
No comments have yet been made