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核心技术专利：CN118964589B侵权必究

核心技术专利：CN118964589B侵权必究

Comp Biochem Physiol A Comp Physiol. 1983;74(3):705-9. doi: 10.1016/0300-9629(83)90572-8.

The role of upper arm muscles in amphibian amplexus was investigated. 2. The musculature of the male frog is arranged so that the response to any form of massive stimulation is flexion of the forelimbs, the fundamental pattern in amplexus. 3. The sternoradialis, one of the forelimb flexors, exhibited several sexually dimorphic characters. It was found to be larger in males than females and possessed a large population of small diameter muscle fibers. 4. Mechanical evidence indicated that the male sternoradialis contains a significant number of tonic or slow muscle fibers. These tonic fibers undergo physiological changes during amplexus including a membrane potential shift in the direction of the mechanical threshold and greater efficiency of contraction. 5. It was concluded that the sternoradialis contributes significantly to muscular response in amplexus and that the tonic fibers in this muscle play an important role in amplexus.

研究了上臂肌肉在两栖动物抱对中的作用。2. 雄蛙的肌肉组织排列方式使得对任何形式的强烈刺激的反应都是前肢弯曲，这是抱对的基本模式。3. 胸桡肌是前肢屈肌之一，表现出几个两性异形特征。发现雄蛙的胸桡肌比雌蛙的更大，且拥有大量小直径肌纤维。4. 力学证据表明，雄蛙的胸桡肌含有大量的紧张性或慢肌纤维。这些紧张性纤维在抱对过程中会发生生理变化，包括膜电位向机械阈值方向的偏移以及收缩效率的提高。5. 得出的结论是，胸桡肌对抱对中的肌肉反应有显著贡献，且该肌肉中的紧张性纤维在抱对中起重要作用。

Comp Biochem Physiol A Comp Physiol. 1983;74(3):705-9. doi: 10.1016/0300-9629(83)90572-8.

The role of upper arm muscles in amphibian amplexus was investigated. 2. The musculature of the male frog is arranged so that the response to any form of massive stimulation is flexion of the forelimbs, the fundamental pattern in amplexus. 3. The sternoradialis, one of the forelimb flexors, exhibited several sexually dimorphic characters. It was found to be larger in males than females and possessed a large population of small diameter muscle fibers. 4. Mechanical evidence indicated that the male sternoradialis contains a significant number of tonic or slow muscle fibers. These tonic fibers undergo physiological changes during amplexus including a membrane potential shift in the direction of the mechanical threshold and greater efficiency of contraction. 5. It was concluded that the sternoradialis contributes significantly to muscular response in amplexus and that the tonic fibers in this muscle play an important role in amplexus.

研究了上臂肌肉在两栖动物抱对中的作用。2. 雄蛙的肌肉组织排列方式使得对任何形式的强烈刺激的反应都是前肢弯曲，这是抱对的基本模式。3. 胸桡肌是前肢屈肌之一，表现出几个两性异形特征。发现雄蛙的胸桡肌比雌蛙的更大，且拥有大量小直径肌纤维。4. 力学证据表明，雄蛙的胸桡肌含有大量的紧张性或慢肌纤维。这些紧张性纤维在抱对过程中会发生生理变化，包括膜电位向机械阈值方向的偏移以及收缩效率的提高。5. 得出的结论是，胸桡肌对抱对中的肌肉反应有显著贡献，且该肌肉中的紧张性纤维在抱对中起重要作用。