myofibril

简明释义

英[ˌmaɪə(ʊ)ˈfaɪbrɪl]美[ˌmaɪəˈfaɪbrəl]

n. [组织] 肌原纤维

英英释义

单词用法

同义词

反义词

例句

1.CONCLUSION: Myocardial interstitial fibrosis and the reduction of myofibril elements are the major pathological basis for the impairment of cardiac function in patients with DCM.

结论：DCM患者心肌间质纤维化，肌原纤维减少是扩张型心肌病心功能损害的主要病理基础。

2.The high content (11.93%) of Lys residue distinguished carp MBSP from other serine proteinases and this may account for its myofibril-binding characteristic.

MBSP有高含量的赖氨酸残基（11.93%），此特性可能与该酶的肌原纤维结合特性有关。

3.Injuries of capillaries promoted the formation of contraction band (CB) of myofibril and myocardial necrosis.

毛细血管损伤促进了肌原纤维收缩带形成，加速了心肌细胞坏死。

4.The effect of soybean trypsin inhibitor (STI) on the degradation of silver carp myofibrillar proteins caused by an endogenous myofibril-bound serine proteinase (MBSP) was studied.

研究了大豆胰蛋白酶抑制剂（STI）对鲢肌肉中肌原纤维结合型丝氨酸蛋白酶（MBSP）引起的肌原纤维蛋白降解作用的影响。

5.Meantime the property of the myofibril contraction under different biochemistry conditions had been tested.

同时，对各种生化条件下肌纤维的收缩性质进行了测试。

6.Different degrees of myofibril damage were found.

肌原纤维也有不同程度损伤。

7.The inhibition of Myostatin expression can accelerate the myoblast proliferation and myofibril hypertrophy, which results in the skeletal muscle hyperplasia.

对该基因表达的抑制可引起成肌细胞的过度增殖和肌纤维的肥大，从而引起骨骼肌增生。

8.The effect of soybean trypsin inhibitor (STI) on the degradation of silver carp myofibrillar proteins caused by an endogenous myofibril-bound serine proteinase (MBSP) was studied.

研究了大豆胰蛋白酶抑制剂（STI）对鲢肌肉中肌原纤维结合型丝氨酸蛋白酶（MBSP）引起的肌原纤维蛋白降解作用的影响。

9.The contraction of each muscle fiber is driven by the interaction between actin and myosin within the myofibril.

每根肌肉纤维的收缩是由肌动蛋白和肌球蛋白在肌原纤维内的相互作用驱动的。

10.The length of a myofibril can influence the strength of muscle contractions.

肌原纤维的长度可以影响肌肉收缩的力量。

11.During weight training, the stress placed on muscles leads to the growth of myofibrils.

在举重训练中，施加在肌肉上的压力会导致肌原纤维的生长。

12.A healthy diet can support the repair and regeneration of myofibrils after exercise.

健康的饮食可以支持运动后肌原纤维的修复和再生。

13.In cardiac muscle, the arrangement of myofibrils is crucial for effective heart contractions.

在心脏肌肉中，肌原纤维的排列对有效的心脏收缩至关重要。

作文

The human body is a remarkable machine, composed of various systems that work together to perform countless functions. One of the most important components of the muscular system is the muscle fiber, which is further divided into smaller structures known as myofibrils. These myofibrils are essential for muscle contraction and play a crucial role in how our muscles function during physical activity.Muscle fibers are made up of numerous myofibrils, which are long, thread-like structures that run parallel to each other. Each myofibril is composed of repeating units called sarcomeres, the fundamental contractile units of muscle tissue. Sarcomeres contain the proteins actin and myosin, which interact to produce muscle contractions. When a muscle receives a signal from the nervous system, the myofibrils within the muscle fibers contract, resulting in movement.Understanding the structure and function of myofibrils is vital for anyone interested in biology, sports science, or medicine. For instance, athletes often focus on enhancing their muscle performance through strength training, which increases the size and number of myofibrils within their muscle fibers. This process, known as hypertrophy, allows for greater force production and improved athletic performance. By understanding how myofibrils function, trainers and athletes can develop more effective training programs that target specific muscle groups and enhance overall strength.Moreover, the health of myofibrils is crucial for maintaining muscle function as we age. Sarcopenia, the loss of muscle mass and strength associated with aging, is partly due to the degradation of myofibrils. Researchers are exploring various ways to combat this decline, including resistance training and nutritional interventions. By focusing on preserving and enhancing myofibrils, individuals can improve their quality of life and maintain independence as they age.In addition to their role in muscle contraction, myofibrils also have implications for various medical conditions. Diseases such as muscular dystrophy involve the degeneration of muscle fibers and myofibrils, leading to progressive weakness and loss of function. Understanding the biology of myofibrils is essential for developing potential treatments and therapies for these conditions.In conclusion, myofibrils are fundamental components of muscle fibers that play a critical role in muscle contraction and overall muscle health. Whether in the context of athletic training, aging, or disease, the significance of myofibrils cannot be overstated. By studying and understanding these intricate structures, we can gain valuable insights into how to maintain and enhance muscle function throughout our lives. As we continue to explore the complexities of human physiology, the study of myofibrils will undoubtedly remain a key area of interest for scientists and health professionals alike.

人类身体是一台非凡的机器，由各种系统组成，协同工作以执行无数功能。肌肉系统中最重要的组成部分之一是肌肉纤维，而肌肉纤维进一步分为称为肌原纤维的更小结构。这些肌原纤维对肌肉收缩至关重要，并在我们在进行体育活动时肌肉的功能中扮演着关键角色。肌肉纤维由众多的肌原纤维组成，这些肌原纤维是长而细的结构，平行排列。每个肌原纤维由称为肌节的重复单位组成，这是肌肉组织的基本收缩单位。肌节含有蛋白质肌动蛋白和肌球蛋白，这些蛋白质相互作用以产生肌肉收缩。当肌肉接收到来自神经系统的信号时，肌肉纤维内的肌原纤维收缩，从而导致运动。理解肌原纤维的结构和功能对于任何对生物学、运动科学或医学感兴趣的人来说都是至关重要的。例如，运动员通常通过力量训练来增强肌肉表现，这增加了他们肌肉纤维内肌原纤维的大小和数量。这一过程被称为肥大，允许更大的力量产生和改善运动表现。通过理解肌原纤维的功能，教练和运动员可以制定更有效的训练计划，针对特定肌肉群，提高整体力量。此外，肌原纤维的健康对于维持肌肉功能至关重要，尤其是随着年龄的增长。衰老相关的肌肉质量和力量丧失被称为肌肉减少症，部分原因是肌原纤维的退化。研究人员正在探索各种方法来对抗这种衰退，包括抗阻训练和营养干预。通过关注保护和增强肌原纤维，个人可以改善生活质量，并在老年时保持独立。除了在肌肉收缩中的作用外，肌原纤维还与各种医疗条件有关。肌肉萎缩症等疾病涉及肌肉纤维和肌原纤维的退化，导致逐渐的虚弱和功能丧失。理解肌原纤维的生物学对于开发潜在治疗和疗法至关重要。总之，肌原纤维是肌肉纤维的基本组成部分，在肌肉收缩和整体肌肉健康中发挥着关键作用。无论是在运动训练、衰老还是疾病的背景下，肌原纤维的重要性都不容忽视。通过研究和理解这些复杂的结构，我们可以获得关于如何维持和增强肌肉功能的宝贵见解。在我们继续探索人类生理学的复杂性时，肌原纤维的研究无疑将继续成为科学家和健康专业人士关注的关键领域。