• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Cells Tissues Organs >Functional Anatomy of Incisal Biting in Aplodontia rufa and Sciuromorph Rodents – Part 1: Masticatory Muscles Skull Shape and Digging
【2h】

Functional Anatomy of Incisal Biting in Aplodontia rufa and Sciuromorph Rodents – Part 1: Masticatory Muscles Skull Shape and Digging

机译：粗牙线虫和Sciuromorph啮齿动物的切牙咬合功能解剖–第1部分：咀嚼肌头骨形状和挖掘

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Traditionally, rodents have been grouped into suborders distinguished largely on the basis of characteristics of the jaw adductor muscles and other features of the masticatory apparatus. The three classic suborders are: Sciuromorpha (squirrels), Myomorpha (rats and mice), and Hystricomorpha (porcupines and the South American caviomorph rodents). Protrogomorph rodents are thought to represent the primitive condition of rodent masticatory muscles. Aplodontia rufa, the mountain beaver, is the only living protrogomorphous rodent. The present work is a detailed comparison of the masticatory apparatus in A. rufa and Marmota monax, the woodchuck. But the mandibular region of A. rufa appears remarkable, unlike anything found in other rodents. Is A. rufa a reasonable representative of the primitive, protrogomorphous condition? A. rufa is a member of the aplodontoid-sciuroid clade with a wide and flat skull. The large temporalis and mandibular apophyses of A. rufa are features related to its relatively wide skull. Such features are found in less dramatic forms in other sciuromorphous species and the basic arrangement of the masticatory muscles of A. rufa is similar to the arrangement seen in sciuromorphs.
机译：传统上，将啮齿类动物分为亚类，主要根据下颌内收肌的特征和咀嚼器的其他特征进行区分。这三个经典的亚目是：Sciuromorpha（松鼠），Myomorpha（大鼠和小鼠）和Hystricomorpha（豪猪和南美caviomorph啮齿动物）。 Protrogomorph啮齿动物被认为代表了啮齿动物咀嚼肌的原始状态。山灰海豚（Aplodontia rufa）是唯一活的原形啮齿动物。本工作是对A. rufa和土拨鼠Marmota monax中咀嚼装置的详细比较。但是，与其他啮齿类动物中发现的任何东西不同，rufa的下颌区域看起来很明显。 ru。rufa是否可以合理地代表原始，亚种质状态？ ru。rufa是具有宽而扁平头骨的Aplodontoid-sciuroid进化枝的成员。 rufa.rufa的大型颞叶和下颌骨po突是与其相对宽的头骨有关的特征。这种特征在其他亚类形态的物种中以较少的戏剧性形式被发现，并且黑麦曲霉咀嚼肌的基本排列类似于在亚类形态中看到的排列。

著录项

相似文献

  • 外文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号