767018
Descrição
FlashCards por gina_evans0312, atualizado more than 1 year ago
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Criado por gina_evans0312
aproximadamente 10 anos atrás
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| Questão | Responda |
| Example | Schistocomia haematobium |
| Forms | 5- Miracidia (larval stage) cercaria, encysted metacaria, metacaria and worms |
| Description | Mouth and ventral sucker but no anus, single sement with male and female reproductive tissue |
| Life Cycle- (1) Exiting Humans | Human excretes eggs into the environment |
| Life Cycle- (2) Larva | In water, the larval stage (miracidia) occurs |
| Life Cycle- (3) Snails | Larva infect freshwater snail and reproduce asexually to form circaria |
| Life Cycle- (4a) Fish | Circadia enter fish/crustaceans and become encysted metacaria in the muscle |
| Life Cycle- (4b) Plants | Can be left on plants by water, develop into metacaria |
| Life Cycle- (4c) Penetrate | Some flukes can penetrate human skin from the water |
| Life Cycle- (5) Humans | Either by penetration or ingestion, the metacaria end up in humans and develop into worm form |
| Schistocomia haematobium- Infection | UTIs, where body reacts to the release of eggs |
| Schistocomia haematobium- Symptoms | Inflammation and blood in urine (can lead to bladder cancer) |
| Schistocomia haematobium- Skin Penetration | Can cause itchyness where skin is penetrated |
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