6.Theyarebiohelminths.Only getting into fresh water eggs can developTheirintermediate hosts are in water1st intermediate hosts are all snails, and 2ndintermediate hosts varies from species.7. They have their reservoir hosts. The fluke diseasesare zoonoses.(But the Schistosomiasis is an exception)
6. They are biohelminths. Only getting into fresh water eggs can develop. Their intermediate hosts are in water. 1 st intermediate hosts are all snails, and 2 nd intermediate hosts varies from species. 7. They have their reservoir hosts. The fluke diseases are zoonoses. (But the Schistosomiasis is an exception)
CChineseliverflukeClonorchissinensisp206Clonorchis sinensis was described byMcConnell in the bile duct of a Chinesecarpenterin Calcutta,in 1875
Clonorchissinensis （Chinese liver fluke）p206 Clonorchis sinensis was described by McConnell in the bile duct of a Chinese carpenter in Calcutta, in 1875
I.morphology1. Adult:(1) sunflower seed-like;(2) measuring 10-25 × 3-5mm;(3)the oral sucker at the top is slightlylargerthan the ventralsuckerlocated in theanterior 1/5 part of the bodyOralsuckerClonorchissinensis-CaecaOvarylobedOVentral suckerTUterus coiledT紫Vitellaria inmiddle thirdTestesbranched10-20x3-4mm
I. morphology 1. Adult: (1) sunflower seed-like; (2) measuring 10-25 × 3-5mm; (3) the oral sucker at the top is slightly larger than the ventral sucker located in the anterior 1/5 part of the body;
(4) reproductive system is hermaphroditic; two deeply branchedtestes in tandem are located in the posterior third part of the bodythe ovary and uterus are in the mid part.(5)the digestive tract is divided into two ceca;Oral suckerClonorchissinensisCaecaOvarylobed0VentralsuckerTUterus coiled恭TVitellariainmiddlethirdTestesbranched10-20x3-4mm
(4) reproductive system is hermaphroditic; two deeply branched testes in tandem are located in the posterior third part of the body; the ovary and uterus are in the mid part. (5) the digestive tract is divided into two ceca;
Adult worm of C. sinensisoralsuckerintestineSsventral suckeruterus中学平vitellariaWvitelline ductovary丫seminalreceptaclevasefferenstestisexcretory canal
Adult worm of C. sinensis