动物学中讲到青蛙的呼吸器官是:“青蛙有肺一对,呈囊状,里面有很多隔膜,把肺隔成很多肺泡。”虽然在解剖青蛙时,学生还可以看到吹胀的两个肺确是呈囊状。但是隔膜的情形,却不容易观察清楚,所以对它的理解,总是不够真切。最近我們把蟾蜍的肺脏剪下,用吹胀烘干的方法,做成演示标本,很适于观察肺里隔膜的情形。制作方法是在铁三脚架上斜放一个铁罐(用罐头食品的废罐),下面用酒精灯烧热。剪下一侧蛙肺(或用蟾蜍的肺,越大越好。)扎在一 In zoology the frog’s breathing organs are: “The frog has a pair of lungs, cystic, with a lot of septa that divide the lungs into many alveoli.” While the frogs were dissected, students could also see two A lung is indeed cystic. However, the situation of the diaphragm, but not easy to observe, so understanding of it is always not real enough. Recently, we cut the lungs of toads, made them into demo samples by blistering and drying, which is good for observing the septum in the lungs. Production method is oblique on the iron tripod a canister (canned food waste cans), the following heat with alcohol lamp. Cut one frog lung (or use toad lungs, the bigger the better)