【摘要】 为适应奔跑和支持体重,鸵鸟的后肢骨骼特别发达。股骨和小腿骨,其形态结构与家畜相似。头骨断面呈海绵状,颈椎18枚,腰椎、荐椎、尾椎愈合成腰荐骨。胸骨扁而平呈板状,无龙骨突。更多还原

【Abstract】 To adjust to running and support the body weight,Ostrich’s Skeleton of hind legsis rather developed. As for femur and tibia,ostrich similars with domestic fowl.the selectionof skull looks spone-like. There are 18 cervical vertebras, 8 thoratic vertebras.the lumbarvertebra,butterfly vertebra and several coccygeal vertebrar combined eath othel,and becomeone big skeleton the breastboe is flat and no carin.更多还原