New frontiers in imaging, anatomy, and mechanics of crocodylian jaw muscles
New frontiers in imaging, anatomy, and mechanics of crocodylian jaw muscles
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DOI：
10.1002/ar.25011
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发表时间：
2022-06-20
影响因子：
2
通讯作者：
Colbert, Matthew W.
中科院分区：
文献类型：
--
作者：
Holliday, Casey M.;Sellers, Kaleb C.;Colbert, Matthew W.
新的成像和生物力学方法预示着我们对鳄鱼解剖学的理解的复兴。在这里，我们回顾了鳄鱼下颌肌肉的准备、成像和功能分析的一系列方法。碘造影显微 CT 方法使我们能够对鳄鱼胚胎和成年标本的肌肉、神经和其他软组织的解剖结构产生新的认识。这些成像数据和其他肌肉建模方法可以提高肌肉尺寸和附件的准确性，而无需使用解剖等破坏性方法。 3D 建模方法和成像数据现在使我们能够查看和重建 3D 肌肉结构，从而使我们能够估计 3D 肌肉合成结果，而且还能以以前从未见过的方式测量羽状结构。这些方法已经揭示了有关鳄鱼和其他鳄鱼的下颌肌肉和头部的个体发育、多样性和功能的新信息。这些方法将有助于对鳄鱼、它们的化石祖先和脊椎动物的形态、功能和进化进行更深入和更准确的分析。
New imaging and biomechanical approaches have heralded a renaissance in our understanding of crocodylian anatomy. Here, we review a series of approaches in the preparation, imaging, and functional analysis of the jaw muscles of crocodylians. Iodine-contrast microCT approaches are enabling new insights into the anatomy of muscles, nerves, and other soft tissues of embryonic as well as adult specimens of alligators. These imaging data and other muscle modeling methods offer increased accuracy of muscle sizes and attachments without destructive methods like dissection. 3D modeling approaches and imaging data together now enable us to see and reconstruct 3D muscle architecture which then allows us to estimate 3D muscle resultants, but also measurements of pennation in ways not seen before. These methods have already revealed new information on the ontogeny, diversity, and function of jaw muscles and the heads of alligators and other crocodylians. Such approaches will lead to enhanced and accurate analyses of form, function, and evolution of crocodylians, their fossil ancestors and vertebrates in general.