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用大体解剖和光镜技术对暗纹东方鲀幼鱼的消化道进行了形态学和组织学观察。暗纹东方鲀消化道可分为口咽腔、食道、胃、小肠和直肠5部分,食道与胃、胃与小肠、小肠与直肠间均存有明显的缢缩。咽后消化道的管壁组织可分为4层:粘膜层、粘膜下层、肌层和浆膜层。食道的粘膜上皮为复层扁平上皮细胞,上皮层内含有大量杯状分泌细胞。胃、小肠和直肠的粘膜上皮均为单层柱状上皮,具纹状缘。胃明显膨大,呈“J”型,胃长约占整个消化道长的1/5,未见胃腺存在。胃体中底部粘膜褶明显增多,并多次回复折叠。小肠粘膜褶发达呈多分支状,直肠粘膜褶向肠腔突起呈乳头状。
The morphology and histology of the digestive tract of Takifugu obscurus were observed with gross anatomy and light microscopy. Obsidia Oriental 鲀 digestive tract can be divided into oropharyngeal cavity, esophagus, stomach, small intestine and rectum 5 parts, esophagus and stomach, stomach and small intestine, small intestine and rectum were significantly reduced constriction. Pharyngeal digestive tract wall tissue can be divided into 4 layers: mucosal layer, submucosa, muscularis and serosa. Esophageal mucosal epithelium is stratified squamous epithelial cells, the epithelium contains a large number of goblet-like secreting cells. Stomach, small intestine and rectal mucosal epithelium are monolayer columnar epithelium, with a striatum. Significantly enlarged stomach, was “J ” type, the stomach accounts for about 1/5 of the entire digestive tract, no gastric glands. Mucosal folds in the bottom of the corpus significantly increased, and fold back repeatedly. Small intestine mucosal fold was developed multi-branch, pleural rectal mucosal prolapse was papillary.