摘要
对普遍消化系统的形态结构进行了观察研究,结果表明:普通具有锋利的喙,利于撕裂食物;舌根表面具有尖端指向后方的栉状突,可防止食物的滑脱;嗉囊发达;小肠发达,而盲肠极度退化.文中还与部分鸟类作了比较.
The observation morphological constracture of digestive system of Buteo buteo has been carried out by naked eyes and OLYMPUS dissection microscope in this paper. It shows:(1)This kind of bird has many bomblike papillas which point towards hind section in roof of tongue. The papillas at the end of two branches of tongue root become stick like. These papillas can prevent the escaping of food; (2)Buteo buteo has developed crop; (3)Buteo buteo has sharp beaks which call lacerate the food; (4)The small intestine is very much developed but cecum is very degenerate; (5)According to the comparison between Buteo buteo and some other birds, the carnivorous birds have very developed small intestine and undeveloped cecum, but herbivorous birds have mild developed small intestine and very developed cecum.
出处
《河南师范大学学报（自然科学版）》
CAS
CSCD
2004年第3期73-76,共4页
Journal of Henan Normal University(Natural Science Edition)
基金
河南省自然科学基金资助项目(0411032500)
关键词
普通鵟
消化系统
形态学
Buteo buteo
digestive system
morphology
