使用 diceCT 描述海 (Phoca vitulina) 中神秘的肌肉结构
Alyx Elder1, Elizabeth Evans2, Charlotte Brassey1
1Department of Natural Science, Manchester Metropolitan University, Manchester, UK.
Journal of anatomy
|October 15, 2024
概括
港湾海使用大额外肌肉,而不是内在肌肉,在水下移动它们敏感的面部胡须. 这项研究使用 diceCT.揭示了这些肌肉的3D解剖学.
科学领域:
- 海洋生物学 海洋生物学
- 比较解剖学的比较解剖学.
- 功能形态学 功能形态学
背景情况:
- 松脚动物具有高度敏感的神秘振动,对感官知觉至关重要.
- 在足动物中控制振动的内在肌肉仍然在很大程度上未被描述.
- 传统的组织学方法提供了有限的3D解剖洞察力,特别是对于诸如形神经之类的复杂结构.
研究的目的:
- 描述港湾海中神秘的振动肌肉的3D结构.
- 研究内在和外在肌肉在振动运动中的作用.
- 使用扩散性对比增强计算机断层扫描 (diceCT) 进行详细的解剖视觉化.
主要方法:
- 将diseCT应用于化海头,以在三维中可视化海肌肉.
- 检查了神秘地带内的振动组织.
- 识别和描述与振动相关的内在和外在肌肉.
主要成果:
- 港湾海的振动在神秘的中排列成有组织的网格.
- 识别了连接vibrissae在排列中的带绳形状和曲的内在肌肉.
- 发现的大,明确的外部肌肉 (m. nasolabialis,m. maxillolabialis) 是突出的,与大内在肌肉的预测相反.
- 内在肌肉是有规律地分布的,但不是很大的.
结论:
- 外部肌肉,特别是m. nasolabialis和m. maxillolabialis,可能是海海在水下振动延伸的主要驱动因素.
- 这项研究强调了像diseCT这样的3D成像技术的实用性,以了解皮动物的神秘解剖学和功能.
- 针的振动控制在很大程度上依赖于外部肌肉,挑战了基于其他哺乳动物的先前假设.
相关概念视频
Microscopic Anatomy of Skeletal Muscles
22.7K
Skeletal muscle cells, also called muscle fibers, are distinctly elongated, multi-nucleated, slender biological units. They are packed with specialized structures designed to facilitate their primary function, which is contraction.
The muscle sarcolemma is a plasma membrane enclosing each muscle cell that conducts electrical signals called action potentials. The sarcolemma extends into the cell to form T-tubules, ensuring the neural impulses are uniformly distributed across the entire muscle...
The muscle sarcolemma is a plasma membrane enclosing each muscle cell that conducts electrical signals called action potentials. The sarcolemma extends into the cell to form T-tubules, ensuring the neural impulses are uniformly distributed across the entire muscle...
22.7K
Naming Skeletal Muscles
4.7K
The naming of the approximately 700 muscles in the human body is based on a set of criteria designed to provide descriptive information about each muscle, making it easier to identify and remember them.
The key factors used in naming muscles include:
The key factors used in naming muscles include:
4.7K


