decussation

简明释义

英[ˌdɪkəˈseɪʃən]美[ˌdɪkəˈseɪʃən]

n. X 形交叉；十字交叉

英英释义

单词用法

同义词

反义词

例句

1.Result Wavelet scalogram of blood flow ultrasonic signal had a higher distinguishability than STFT spectrogram in the low frequency portion, but had poorer decussation terms than spectrogram.

结果通过血流多普勒信号的小波尺度图研究科室，发现利用小波尺度图可以眼科提高血流多普勒信号低频段的频谱分辨率。

2.Result Wavelet scalogram of blood flow ultrasonic signal had a higher distinguishability than STFT spectrogram in the low frequency portion, but had poorer decussation terms than spectrogram.

结果通过血流多普勒信号的小波尺度图研究科室，发现利用小波尺度图可以眼科提高血流多普勒信号低频段的频谱分辨率。

3.The paper expounds the researches on applied anatomy of blood supply for optic decussation and ophthalmic tract in recent years.

本综述对近年来视交叉与视束血液供应的解剖学研究进行了专门分析阐述。

4.There is no decussation in the lateral corticospinal tract after the decussation at the medullary pyramids.

它们在髓状锥体交叉后，不会在皮层脊髓侧束中交叉。

5.The term decussation refers to the crossing of nerve fibers in the brain, which is crucial for coordinating movement.

术语decussation指的是大脑中神经纤维的交叉，这对于协调运动至关重要。

6.In anatomy classes, students learn about the decussation of the pyramids in the medulla oblongata.

在解剖学课程中，学生学习延髓中的decussation。

7.The decussation of sensory pathways allows for the integration of information from both sides of the body.

感觉通路的decussation允许来自身体两侧的信息整合。

8.Understanding the decussation process is important for neurosurgeons during brain surgeries.

理解decussation过程对神经外科医生在脑部手术中非常重要。

9.The decussation of the optic nerves occurs at the optic chiasm, allowing visual information to be processed by both hemispheres.

视神经的decussation发生在视交叉，使得视觉信息能够被两个半球处理。

作文

The human brain is an incredibly complex organ, responsible for controlling a multitude of functions ranging from basic survival instincts to higher cognitive processes. One fascinating aspect of the brain's anatomy is the phenomenon known as decussation, which refers to the crossing over of nerve fibers from one side of the body to the other. This intricate arrangement allows for the integration of sensory and motor functions across the left and right hemispheres of the brain. Understanding decussation can provide valuable insights into how our nervous system operates and why certain neurological conditions manifest the way they do. To illustrate the concept of decussation, consider the motor pathways that control voluntary movements. In a typical scenario, when the brain sends a signal to move a limb, the command originates in the motor cortex on one side of the brain. However, due to decussation, the nerve fibers cross over to the opposite side of the body before reaching the spinal cord. This means that the left side of the brain controls the right side of the body and vice versa. This crossing over is crucial for coordinated movement and balance, as it allows both sides of the body to work in harmony. Moreover, decussation is not limited to motor pathways; it also plays a significant role in sensory processing. For example, sensory information from the right side of the body travels to the left hemisphere of the brain through decussation. This is particularly evident in the visual system, where signals from the right visual field are processed in the left hemisphere and vice versa. Such an arrangement ensures that our perception of the environment is integrated and coherent. The implications of decussation extend beyond basic anatomy; they also have clinical significance. Understanding how decussation functions can aid in diagnosing and treating various neurological disorders. For instance, in cases of stroke, where blood flow to a part of the brain is interrupted, the effects can often be observed on the opposite side of the body due to the decussation of motor pathways. Rehabilitation strategies may need to account for this crossing over to effectively restore function. In addition, research into decussation has potential applications in the field of neuroprosthetics. By gaining a deeper understanding of how nerve fibers cross and communicate within the brain, scientists may develop more effective interfaces that can bridge the gap between damaged neural pathways and prosthetic devices. This could lead to improved outcomes for individuals with paralysis or limb loss. In conclusion, decussation is a fundamental concept in neuroscience that highlights the intricate connections within our nervous system. From motor control to sensory perception, the crossing over of nerve fibers plays a vital role in how we interact with the world around us. As research continues to advance, a greater understanding of decussation will undoubtedly lead to new discoveries and innovations in both medicine and technology. The complexity of the human brain is matched only by its capacity for adaptation, and decussation exemplifies the remarkable ways in which our bodies maintain balance and coordination.

人脑是一个极其复杂的器官，负责控制从基本生存本能到更高认知过程的多种功能。大脑解剖学中一个迷人的方面是被称为交叉的现象，这指的是神经纤维从身体一侧交叉到另一侧。这种复杂的排列使得左右大脑半球之间能够整合感觉和运动功能。理解交叉可以为我们提供有关神经系统如何运作的宝贵见解，以及为什么某些神经病理状况以特定方式表现。 为了说明交叉的概念，考虑控制自愿运动的运动通路。在典型情况下，当大脑发出移动肢体的信号时，该命令源于大脑一侧的运动皮层。然而，由于交叉，神经纤维在到达脊髓之前会交叉到身体的另一侧。这意味着大脑的左侧控制身体的右侧，反之亦然。这种交叉对于协调运动和平衡至关重要，因为它允许身体两侧和谐地工作。 此外，交叉不仅限于运动通路；它在感觉处理方面也起着重要作用。例如，来自身体右侧的感觉信息通过交叉传递到大脑的左半球。这在视觉系统中特别明显，右视觉场的信号在左半球处理，反之亦然。这种安排确保了我们对环境的感知是整合和连贯的。 交叉的影响不仅限于基础解剖学；它们还具有临床意义。理解交叉的功能可以帮助诊断和治疗各种神经疾病。例如，在中风病例中，血流中断导致大脑某部分的损伤，其影响通常可以在身体的另一侧观察到，因为运动通路的交叉。康复策略可能需要考虑这种交叉，以有效恢复功能。 此外，对交叉的研究在神经假肢领域也有潜在应用。通过深入理解神经纤维如何交叉和在大脑内通信，科学家们可能会开发出更有效的接口，可以弥合受损神经通路与假肢设备之间的差距。这可能改善瘫痪或肢体缺失者的结果。 总之，交叉是神经科学中的一个基本概念，突显了我们神经系统内复杂的连接。从运动控制到感觉感知，神经纤维的交叉在我们与周围世界的互动中发挥着至关重要的作用。随着研究的不断推进，对交叉的理解无疑将导致医学和技术领域的新发现和创新。人脑的复杂性与其适应能力相匹配，而交叉则体现了我们身体维持平衡和协调的卓越方式。