premaxilla

简明释义

英[/priˈmæksɪlə/]美[/priˈmæksɪlə/]

n. [解剖] 前颌骨

复 数 p r e m a x i l l a e

英英释义

单词用法

同义词

反义词

例句

1.Results: Cephalometric analysis revealed that the premaxilla was moved forward and downward and the length of palatal plane increased.

头影测量分析显示上颌前部得到有效向前、向下移动；腭平面延长。

2.Using active preoperative orthopedics to reposit the protruding premaxilla of bilateral cleft palate is a reasonable and effective approach.

用主动矫治器行双侧唇腭裂术前矫治前突的前颌骨是合理和有效的手段。

3.It can be diagnosed by various details of the premaxilla, nasal, and dentary in the skull and the shape of the distal caudal vertebrae.

它的特征包括其各细节的前颌骨，鼻骨，齿骨，头骨和在尾椎骨末端的形状。

4.Nasal process of premaxilla forms the whole posterior margin of the naris.

背突构成整个外鼻孔的后缘。

5.Using active preoperative orthopedics to reposit the protruding premaxilla of bilateral cleft palate is a reasonable and effective approach.

用主动矫治器行双侧唇腭裂术前矫治前突的前颌骨是合理和有效的手段。

6.The surgeon had to repair the fractured premaxilla after the accident.

事故后，外科医生必须修复断裂的前上颌骨。

7.In some species, the size of the premaxilla can indicate their feeding habits.

在某些物种中，前上颌骨的大小可以指示它们的喂食习惯。

8.The premaxilla plays a crucial role in the formation of the upper jaw.

在上颌的形成中，前上颌骨起着至关重要的作用。

9.The dentist examined the patient's premaxilla for any signs of misalignment.

牙医检查了病人的前上颌骨是否有任何错位的迹象。

10.Research on the morphology of the premaxilla helps in understanding evolutionary relationships.

对前上颌骨形态的研究有助于理解进化关系。

作文

The study of vertebrate anatomy reveals fascinating insights into the structure and function of various bones. One such bone is the premaxilla, a crucial component of the skull that plays a significant role in the formation of the upper jaw. The premaxilla is located at the front of the maxilla, or upper jawbone, and is often associated with the development of teeth, particularly the incisors. In many species, including humans, the premaxilla houses the roots of the upper front teeth, making it essential for both aesthetic and functional aspects of the mouth. Understanding the premaxilla is vital not only for anatomists but also for dentists and orthodontists, as it can influence dental health and alignment. For instance, malformations or fractures of the premaxilla can lead to significant dental issues, including misaligned teeth and difficulties in chewing. This highlights the importance of the premaxilla in oral health and its impact on overall well-being.In evolutionary biology, the premaxilla provides insight into the adaptations of different species. The shape and size of the premaxilla can vary widely among animals, reflecting their dietary needs and feeding habits. For example, carnivorous animals tend to have a more pronounced premaxilla to support stronger biting forces, while herbivores may exhibit a flatter premaxilla suited for grinding plant material. Such variations underscore the relationship between form and function in the natural world.Additionally, the premaxilla has been the subject of numerous paleontological studies. Fossils containing well-preserved premaxillae allow scientists to reconstruct the diets and behaviors of extinct species. By examining the morphology of the premaxilla, researchers can infer whether an ancient creature was herbivorous, carnivorous, or omnivorous, providing valuable context for understanding the ecological dynamics of prehistoric environments.In summary, the premaxilla is more than just a bone in the skull; it is a key player in the intricate dance of anatomy, evolution, and health. Its significance spans various fields, from dentistry to evolutionary biology, highlighting the interconnectedness of life forms and their adaptations over time. As we continue to explore the complexities of vertebrate anatomy, the premaxilla remains a focal point for understanding not only our own species but the diverse tapestry of life on Earth. Thus, appreciating the premaxilla enriches our knowledge of both individual health and the broader biological narrative, reminding us of the elegance and intricacy of life itself.

对脊椎动物解剖学的研究揭示了骨骼结构和功能的迷人见解。其中一个重要的骨骼是前上颌骨，这是颅骨的一个关键组成部分，对上颚的形成起着重要作用。前上颌骨位于上颚骨（或上颌骨）的前面，通常与牙齿的发展有关，特别是门牙。在许多物种中，包括人类，前上颌骨容纳上前牙的根部，这使其在口腔的美学和功能方面都至关重要。理解前上颌骨对解剖学家、牙医和正畸医生来说都是至关重要的，因为它会影响牙齿健康和排列。例如，前上颌骨的畸形或骨折可能导致严重的牙齿问题，包括牙齿不齐和咀嚼困难。这突显了前上颌骨在口腔健康中的重要性及其对整体健康的影响。在进化生物学中，前上颌骨提供了不同物种适应性的见解。前上颌骨的形状和大小在动物之间差异很大，反映了它们的饮食需求和觅食习惯。例如，肉食性动物往往具有更明显的前上颌骨，以支持更强的咬合力量，而草食动物则可能表现出较平坦的前上颌骨，适合磨碎植物材料。这些变化强调了自然界中形式与功能之间的关系。此外，前上颌骨也是许多古生物学研究的主题。包含保存良好的前上颌骨化石使科学家能够重建灭绝物种的饮食和行为。通过检查前上颌骨的形态，研究人员可以推断出一种古代生物是草食性、肉食性还是杂食性，为理解史前环境的生态动态提供了宝贵的背景。总之，前上颌骨不仅仅是颅骨中的一块骨头；它是解剖学、进化和健康复杂舞蹈中的关键角色。其重要性跨越多个领域，从牙科到进化生物学，突显了生命形式及其随时间的适应性之间的相互联系。随着我们继续探索脊椎动物解剖学的复杂性，前上颌骨仍然是理解我们自己物种和地球上多样生命织锦的焦点。因此，欣赏前上颌骨丰富了我们对个人健康和更广泛生物叙事的知识，让我们意识到生命本身的优雅与复杂。