knuckle joint

简明释义

铰链接合

英英释义

例句

1.The doctor explained that inflammation in the knuckle joint can lead to arthritis.

医生解释说，关节的炎症可能会导致关节炎。

2.In boxing, it’s important to protect your knuckle joint to avoid injury.

在拳击中，保护你的关节以避免受伤是很重要的。

3.She accidentally hit her hand against the wall, causing pain in her knuckle joint.

她不小心把手撞到墙上，导致她的关节疼痛。

4.During the game, he sprained his knuckle joint while trying to catch the ball.

在比赛中，他在试图接球时扭伤了他的关节。

5.When I make a fist, the movement of my fingers is primarily due to the flexibility of the knuckle joint.

当我握拳时，我的手指运动主要是由于关节的灵活性。

作文

The human body is a marvel of engineering, consisting of various components that work together to allow us to perform a multitude of tasks. One such component is the knuckle joint, which plays a crucial role in the movement and flexibility of our fingers. Understanding the structure and function of the knuckle joint can provide insights into how our bodies operate and the importance of maintaining joint health.A knuckle joint refers to the joints in our fingers where two bones meet. More specifically, these are the metacarpophalangeal joints, located between the metacarpal bones of the hand and the proximal phalanges of the fingers. These joints allow for a wide range of motion, enabling us to grip, hold, and manipulate objects with precision. The ability to flex and extend our fingers is essential not only for everyday tasks like writing or typing but also for more complex activities such as playing musical instruments or engaging in sports.The structure of the knuckle joint is fascinating. Each joint is surrounded by a capsule filled with synovial fluid, which lubricates the joint and reduces friction during movement. This fluid is essential for maintaining the health of the joint, as it nourishes the cartilage that covers the ends of the bones. The cartilage acts as a cushion, absorbing shock and preventing the bones from rubbing against each other. Over time, however, wear and tear can lead to conditions like arthritis, which can cause pain and limit mobility.In addition to their mechanical function, knuckle joints also play a role in our sensory perception. The fingers are packed with nerve endings, making them highly sensitive to touch. This sensitivity is crucial for tasks that require fine motor skills, as it allows us to feel textures, temperatures, and pressures. The intricate design of the knuckle joint facilitates this sensory feedback, making our hands incredibly versatile tools.Maintaining the health of our knuckle joints is vital for preserving our overall quality of life. Regular exercise, including stretching and strengthening routines, can help keep the joints flexible and reduce the risk of injury. Additionally, paying attention to our posture and ergonomics while performing tasks can prevent undue stress on the joints. For those who experience pain or discomfort in their knuckle joints, seeking medical advice is important. Treatments may include physical therapy, medication, or in severe cases, surgical intervention to restore function.In conclusion, the knuckle joint is an essential component of our body's musculoskeletal system. It allows for the intricate movements of our fingers, enabling us to perform a wide range of tasks. Understanding the anatomy and function of the knuckle joint highlights the importance of taking care of our joints to ensure longevity and functionality. By prioritizing joint health through exercise, proper ergonomics, and seeking medical attention when necessary, we can maintain our ability to engage in the activities we love for years to come.

人体是工程的奇迹，由各种组件组成，这些组件共同作用，使我们能够执行多种任务。其中一个组件是关节，它在我们手指的运动和灵活性中发挥着至关重要的作用。理解关节的结构和功能可以提供关于我们身体如何运作以及保持关节健康的重要性的见解。关节是指我们手指中两根骨头相遇的关节。更具体地说，这些是位于手的掌骨和手指近端指骨之间的掌指关节。这些关节允许广泛的运动范围，使我们能够精确地抓握、持有和操作物体。弯曲和伸展手指的能力不仅对日常任务（如写作或打字）至关重要，而且对更复杂的活动（如演奏乐器或参与体育运动）也是如此。关节的结构令人着迷。每个关节周围都有一个充满滑液的囊，滑液在运动过程中润滑关节并减少摩擦。这种液体对维持关节健康至关重要，因为它滋养覆盖在骨端的软骨。软骨充当缓冲垫，吸收冲击，防止骨头相互摩擦。然而，随着时间的推移，磨损可能导致关节炎等疾病，这可能会引起疼痛并限制活动能力。除了机械功能外，关节还在我们的感知中发挥作用。手指中充满了神经末梢，使其对触觉非常敏感。这种敏感性对于需要精细运动技能的任务至关重要，因为它使我们能够感受到纹理、温度和压力。关节的复杂设计促进了这种感觉反馈，使我们的手成为极其多功能的工具。维护我们的关节健康对于保持整体生活质量至关重要。定期锻炼，包括拉伸和强化训练，可以帮助保持关节灵活性，并减少受伤的风险。此外，在执行任务时注意我们的姿势和人机工程学可以防止关节承受不必要的压力。对于那些在关节中感到疼痛或不适的人，寻求医疗建议很重要。治疗可能包括物理治疗、药物治疗，或在严重情况下进行手术干预以恢复功能。总之，关节是我们身体肌肉骨骼系统的重要组成部分。它允许我们手指的复杂运动，使我们能够执行各种任务。理解关节的解剖结构和功能突显了照顾我们关节的重要性，以确保其持久性和功能性。通过优先考虑通过锻炼、适当的人体工学和在必要时寻求医疗帮助来维护关节健康，我们可以保持参与所爱的活动的能力多年。