abducent nerve

简明释义

外展神经

英英释义

例句

1.The abducent nerve 外展神经 is responsible for innervating the lateral rectus muscle.

外展神经 abducent nerve 负责支配外直肌。

2.A lesion on the abducent nerve 外展神经 can lead to double vision.

在外展神经 abducent nerve 上的损伤可能导致双视。

3.During the neurological exam, the physician tested the function of the abducent nerve 外展神经 by asking the patient to follow a moving object.

在神经检查中，医生通过让患者跟随移动物体来测试外展神经 abducent nerve 的功能。

4.Injury to the abducent nerve 外展神经 can result from head trauma.

头部创伤可能导致外展神经 abducent nerve 受伤。

5.The doctor explained that the abducent nerve 外展神经 controls lateral eye movement.

医生解释说，外展神经 abducent nerve 控制眼睛的侧向运动。

作文

The human body is a complex system of nerves and muscles that work together to facilitate movement and sensory perception. Among the many cranial nerves, the abducent nerve plays a crucial role in eye movement. This nerve, also known as the sixth cranial nerve, is responsible for innervating the lateral rectus muscle of the eye, which allows for abduction or outward movement of the eyeball. Understanding the function and significance of the abducent nerve is essential for both medical professionals and students of anatomy.The abducent nerve originates from the pons, a part of the brainstem, and travels through the skull to reach the orbit of the eye. Its primary function is to control the lateral rectus muscle, enabling the eye to move laterally away from the midline of the body. This action is vital for various visual tasks, such as tracking moving objects and maintaining binocular vision. When the abducent nerve is functioning properly, it ensures that both eyes can coordinate their movements, providing depth perception and a wider field of view.Damage to the abducent nerve can lead to significant visual impairments. One common condition associated with this nerve is strabismus, commonly known as crossed eyes. In this condition, the affected eye cannot align properly with the other eye due to weakness in the lateral rectus muscle. This misalignment can result in double vision, difficulties in focusing, and overall visual discomfort. Patients with strabismus may require treatment options such as glasses, vision therapy, or even surgery to correct the alignment of their eyes.Another serious condition related to the abducent nerve is a condition known as abducens nerve palsy. This occurs when the nerve is damaged, leading to an inability to move the affected eye laterally. This condition can arise from various causes, including head trauma, tumors, or increased intracranial pressure. Individuals with abducens nerve palsy often experience noticeable symptoms, such as diplopia (double vision) and difficulty with eye coordination. Prompt diagnosis and treatment are crucial in managing this condition and preventing further complications.In conclusion, the abducent nerve is a vital component of the cranial nerve system, playing a key role in eye movement and coordination. Its proper function is essential for maintaining clear and accurate vision. Understanding the anatomy and physiology of the abducent nerve not only aids in the diagnosis of ocular disorders but also highlights the importance of neurological health in overall well-being. As we continue to study the intricacies of the human body, the abducent nerve serves as a reminder of the delicate balance required for our sensory systems to function harmoniously.

人体是一个复杂的神经和肌肉系统，它们共同协作以促进运动和感知。在众多颅神经中，外展神经在眼睛运动中起着至关重要的作用。这个神经，也被称为第六颅神经，负责支配眼睛的外直肌，使眼球能够向外移动。理解外展神经的功能和重要性对医学专业人士和解剖学学生来说都是必不可少的。外展神经起源于脑桥，这是脑干的一部分，并穿过颅骨到达眼眶。它的主要功能是控制外直肌，使眼睛能够向身体的中线外侧移动。这一动作对于各种视觉任务至关重要，例如跟踪移动物体和维持双眼视力。当外展神经正常工作时，它确保两只眼睛能够协调运动，从而提供深度感知和更广阔的视野。外展神经的损伤可能导致显著的视觉障碍。与这个神经相关的一种常见病症是斜视，通常被称为“斗鸡眼”。在这种情况下，受影响的眼睛由于外直肌的无力而无法与另一只眼睛正确对齐。这种错位可能导致双重视力、聚焦困难以及整体视觉不适。患有斜视的患者可能需要治疗选择，例如眼镜、视力训练或甚至手术，以纠正眼睛的对齐。与外展神经相关的另一个严重疾病是称为外展神经麻痹的病症。当神经受损时，会导致受影响的眼睛无法向外移动。这种情况可能由多种原因引起，包括头部创伤、肿瘤或颅内压升高。患有外展神经麻痹的个人通常会经历明显的症状，如复视（双重视力）和眼睛协调困难。及时的诊断和治疗对于管理这种情况和防止进一步并发症至关重要。总之，外展神经是颅神经系统的重要组成部分，在眼睛运动和协调中发挥关键作用。其正常功能对维持清晰准确的视力至关重要。理解外展神经的解剖学和生理学不仅有助于眼科疾病的诊断，还突显了神经健康在整体健康中的重要性。随着我们继续研究人体的复杂性，外展神经提醒我们保持我们的感官系统和谐运作所需的微妙平衡。