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双峰驼乳齿的形态学研究

Morphological study of deciduous teeth of Bactrian camel

邵宝平 康小红 赵望泓 王凤玲 王建林 张秀英

目的:研究双峰驼乳齿的形态结构。方法:肉眼观察4-5岁双峰驼乳齿在上下颌的着生并拍照,拔取双峰驼乳齿进行各牙齿的形态结构观察并拍照,用直尺和游标卡尺测量各个参数,进行统计学处理。结果:4-5岁的双峰驼口腔中牙齿为混合齿列,切齿、犬齿、前臼齿为乳齿,臼齿都处于萌出阶段。乳齿齿式为:2(1o1o3o0/3o1o2o0)=22。双峰驼乳齿的齿冠、唇(颊)舌面、近中远中面都具有特殊性,切缘锋利、咀嚼面宽大、齿根长而粗,根形扁,乳齿的冠长、近中远中径和唇(颊)舌径较牦牛等其他草食动物的大。结论:双峰驼乳齿的形态学特点与其生活在荒漠、半荒漠环境中摄食粗硬多刺、木质化程度高的旱生植物的习性是相适应的。

动物学

双峰驼乳齿形态学

邵宝平,康小红,赵望泓,王凤玲,王建林,张秀英.双峰驼乳齿的形态学研究[EB/OL].(2010-07-20)[2025-10-31].http://www.paper.edu.cn/releasepaper/content/201007-382.点此复制

Purpose: to study the morphological structure of deciduous tooth of bactrian camel. Method: observe the consolidation of these tooth of 4-5 years old bactrian camel with naked eyes and take photos, and pull up them to observe the morphological structure and take photos , and measure each tooth with vernier caliper to make statistic analysis. Result: the tooth in the mouth of 4-5 years old bactrian camel are mixed dentition, with deciduous incisor, deciduous canine, deciduous premolar and molar which is in the period of eruption. The dentition formula of deciduous tooth is 2(1o1o3o0/3o1o2o0)=22.it\\\\\\\\\\\\\\\'s particularity on deciduous tooth of Bactrian camel, cutting edge is incisive,masticatory surface is roomy, the root is pachy and long, et al. Conclusion: the morphological characteristics of deciduous tooth of bactrian camel is correspond with the habit of ingesting hard and spiny and highly lignificatious siccocolous in weald and half weald conditions.

Bactrian cameldeciduous teethmorphology

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