翻译达人

三维医学动画：消化系统Digestive System

初一(7)班粟湘

In digestion,food is changed by the organs into a soluble form to be absorbed by the body.food in the mouth is mixed with saliva ,saliva begins to dissolve the food as the teeth grind and cut it.food is forced back into the throat-pharynx by the tongue.food in the pharynx stimulates the swallowing reflex,the larynx is pulled upward to meet the epiglottis and seal up the trachea.food goes from the pharynx to the esophagus.food moves down the esophagus by peristalsis.the peristaltic wave reaches the esophageal sphincter and food enters the stomach.the unique muscular structure of the stomach breaks up the food into small pieces called chyme.chyme exits through the pyloric sphincter into the duodenum of the small intestine.the major portion of absorption and digestion occurs in the small intestine .the mucosae secrete enzyme that supplement the digestive enzyme of the pancreas and liver.this completes the chemical process of digestion.

The water covers the when nutrition absorption take s place.The structure of each contains of capillary and lacteal to pick up the digest new trends.T he New trends are now transported by the blood to al the cells of the body.

The undigested food reached the lleocecal valve and enters to the system or column .

The colon absorbs water and manufactures vitamins.

Produces mucous and forms and expels feces

Master pushestheinto the Rectum which stimulates the of the reflex.

在消化食物的器官产生了一种可溶性被人体吸收。食物在口腔混合唾液,唾液开始溶解食物的牙齿磨和削减它。食物经过舌头的搅拌，以及食物咽刺激吞咽反射后通过食道的蠕动向下移动。蠕动波到达食道括约肌和食物进入胃。独特的胃部的肌肉结构分割成小块的食物称为食糜。食糜出口通过幽门括约肌进入小肠的十二指肠。食物营养的主要部分发生在小肠消化和吸收粘膜分泌酶补充胰腺和肝脏的消化酶。这就完成了化学消化的过程。

水覆盖着食物进行营养的吸收,每份食物中的营养物质，通过毛细血管运送入血液，再通过血液运输至各个细胞.未消化的食物进入大肠或结肠。结肠吸收水和制造维生素,产生粘液,最后大肠大规模蠕动将食物残渣经过直肠刺激反射排便。