《主要蠕虫各期形态观察》由会员分享，可在线阅读，更多相关《主要蠕虫各期形态观察（38页珍藏版）》请在金锄头文库上搜索。
1、主要蠕虫各期形态观察,医学蠕虫Medical Helminthology,一、线虫纲,蛔虫受精卵,未受精蛔虫卵 （Unfertilized eggs of A. lumbricoides）,broadly oval（宽椭圆形） measuring 45 to 75 m by 35 to 50 m. The outer covering is an albuminoid coat；translucent shell（卵壳透明；外包裹一层蛋白质膜） stained brown by bile pigments （棕黄色） a fertilized cell（内含一受精卵）,longer and n
2、arrower measuring from 88 to 94 m by 39 to 44 m Both the inner shell and outer albuminoid coat are thinner,形态特征,（Fertilized eggs of A. lumbricoides）,The fertilized eggs（A. LUMBRICOIDES ） 似蚓蛔线虫受精卵,egg shell卵壳,albuminoid coat蛋白质膜,Gap空隙,fertilized cell卵细胞,egg shell 卵壳,albuminoid coat蛋白质膜,The unfertiliz
3、ed eggs（A. LUMBRICOIDES） 似蚓蛔线虫未受精卵,yolk cell卵黄细胞,Hookworm egg 钩虫卵,egg shell 卵壳,fertilized cell卵细胞,Gap空隙,钩虫卵 （Hookworm eggs）,十二指肠钩虫与美洲钩虫虫卵在光镜下不易区分。 It is hard to differentiate the eggs of the two species. （A. duodenal and N. americanus ）,形态（Morphology） ovoid （椭圆形） very thin and transparent shell（卵壳薄，
4、无色透明）measuring 56 to 76 m by 36 to 40 m. usually contains 4 or 8cells（内含4-8个卵细胞）,egg shell 卵壳,transparent polar plugs 透明栓,fertilized cell卵细胞（have broken down）,Whipworm egg 鞭虫卵,鞭虫卵 Whipworm eggs,形态（Morphology） typically barrel-shaped with two transparent polar plugs（腰鼓形，两端有透明栓） measuring 50 to 54 m b
5、y 22 m. stained brown by fecal segmentscontains a single ovum（内含一个受精卵）,egg shell 卵壳,immature larva未成熟幼虫,Egg of Pinworm 蛲虫卵,形态（Morphology） ovoid and usually conspicuously flattened 明显扁平on one side一侧明显较为扁平 measuring 50 to 60 m by 20 to 30m translucent shell卵壳无色透明 content is usually an immature larva（内
6、含未成熟的幼虫）,蛲虫卵 Egg of Pinworm,头翼,食道球,蛲虫成虫 Adult of Pinworm,大小、体形,十二指肠钩虫 A. duodenal,美洲钩虫 N. americanus,十二指肠钩虫口囊,钩齿,板齿,美洲钩虫口囊,口囊（Buccal capsule）,背辐肋,十二指肠钩虫 A. duodenal,美洲钩虫 N. americanus,交合伞、背肋（Bursa、Dorsal ray）,旋毛虫囊包蚴 Encysted larvae of TRICHINELLA SPIRALIS,Usually, there is only one or two coiled lar
7、va in a capsule囊包of the muscle fiber.,encysted larvae 囊包蚴,TRICHINELLA SPIRALIS 旋毛形线虫,二、绦虫纲,成虫（圆叶目）头节: 细小，圆形或方形，有吸盘 颈节: 细短，有生发组织功能链体: 幼节 成节 孕节（妊娠节片）,头颈节,链体 幼节 成节 孕节,寄生人体的绦虫有30多种，分 属于绦虫纲的圆叶目和假叶目。,猪带绦虫（图示） 牛带绦虫（图示） 细粒棘球绦虫 短、长膜壳绦虫曼氏迭宫绦虫阔节裂头绦虫,圆叶目,假叶目,T. solium,T. saginata,成虫（Adult）,牛带绦虫,猪带绦虫,头节（Scolex）,
8、T. solium,T. saganita,猪带绦虫,牛带绦虫,顶突 及小钩,24,猪带绦虫成节,牛带绦虫成节,成节（Mature proglottid）,卵巢,猪带绦虫孕节,牛带绦虫孕节,孕节（Gravid proglottid）,子宫每侧分7-13支，分支不整齐,子宫每侧分15-30支，分支较整齐,子宫,带绦虫囊尾蚴,椭圆形囊状物，黄豆大小（Ovoid, cystic, size = a bean）,cysticercus cellulosae 牛心脏和牛肉之中的囊尾蚴,embryophore 胚膜,six-hooked larvae 六钩蚴 oncosphere,Taenia spp.
9、Egg 带绦虫卵,形态（Morphology） 30 to 40m Spherical（球形） thin, transparent outer envelope（外壳薄无色透明） The oncosphere is enclosed in thick, radially striated coat called the embryophore, usually dark brown in color（六钩蚴外具有厚的放射状条纹胚膜、棕黑色）six-hooked larvae（ 活卵内易见到六钩蚴）,带绦虫卵 Taenia spp. egg,Can not differentiate T. sa
10、ginata from T. solium,蛲虫卵 Pinworm eggs,鞭虫卵Whipworm eggs,钩虫卵 Hookworm eggs,受精蛔虫卵Fertilized eggs of A. lumbricoides,未受精蛔虫卵Unfertilized eggs of A. lumbricoides,带绦虫卵Eggs of T. saginata,三、吸虫纲,Adult of CLONORCHIS SINENSIS 华支睾吸虫成虫,egg shell卵壳,operculum卵盖,cauda-small knob 尾疣,Miracidium 毛蚴,EGG OF CLONORCHIS
11、SINENSIS 华支睾吸虫卵,egg shell卵壳,fertilized cell 卵细胞,yolk cell 卵黄细胞,operculum卵盖,EGG OF FASCIOLOPSIS BUSKI 布氏姜片吸虫卵,egg shell卵壳,fertilized cell卵细胞,yolk cell 卵黄细胞,operculum卵盖,EGG of PARAGONIMUS WESTERMANI 卫氏并殖吸虫卵,lateral knob 侧刺,egg shell 卵壳,Miracidium 毛蚴,EGG of SCHISTOSOMA JAPONICUM日本血吸虫卵,SCHISTOSOMA JAPONICUM Miracidium 日本血吸虫毛蚴,SCHISTOSOMA JAPONICUM CERCARIA日本血吸虫尾蚴,
