tegmentum

简明释义

英[teɡˈmentəm]美[teɡˈmentəm]

n. [解剖] 被盖；[解剖] 大脑脚盖；[植] 芽鳞

复 数 t e g m e n t a

英英释义

单词用法

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例句

1.The laterodorsal tegmentum (LDT) neurons supply most of the cholinergic tone to the brainstem and diencephalon necessary for physiological arousal.

维持生理性觉醒，需要大脑脚被盖背侧核的神经元为脑干及间脑提供胆碱能递质。

2.The cell layers in tegmentum were indistinct.

被盖处细胞层次不明显。

3.These author found that destruction of per-aqueductal gray matter and adjacent tegmentum beneath the superior colliculi abolished or greatly reduced facio-vocal behavior.

学者们发现位于上脑丘之下的周边导管灰质与邻近的大脑脚盖，大大减少、或破坏了脸部运动行为。

4.These author found that destruction of per-aqueductal gray matter and adjacent tegmentum beneath the superior colliculi abolished or greatly reduced facio-vocal behavior.

学者们发现位于上脑丘之下的周边导管灰质与邻近的大脑脚盖，大大减少、或破坏了脸部运动行为。

5.Objective:To study the ultrastructure of the tegmentum vasculosum(TV) in chick inner ear so as to obtain important information for its physiology and pathology.

目的：了解鸡内耳血管盖的超微结构，为其生理、病理学的研究提供资料。

6.The brainstem includes the midbrain, which houses the tegmentum, responsible for various sensory and motor functions.

脑干包括中脑，其中包含盖层，负责各种感官和运动功能。

7.The ventral tegmentum is involved in the regulation of mood and emotional responses.

腹侧盖层参与情绪和情感反应的调节。

8.Research has shown that damage to the tegmentum can lead to serious neurological deficits.

研究表明，盖层的损伤可能导致严重的神经功能缺失。

9.In the context of addiction, the tegmentum plays a crucial role in the reward pathway.

在成瘾的背景下，盖层在奖励通路中起着至关重要的作用。

10.Neuroscientists study the tegmentum to better understand its role in pain modulation.

神经科学家研究盖层以更好地理解其在疼痛调节中的作用。

作文

The human brain is an incredibly complex organ, composed of various structures that work together to control our thoughts, movements, and sensations. One such structure is the midbrain, which plays a crucial role in many functions. Within the midbrain lies a significant part known as the tegmentum, a term derived from Latin meaning 'covering'. The tegmentum serves as a vital area that connects different parts of the brain, acting as a pathway for various neural signals. It is involved in several essential processes, including motor control, arousal, and the regulation of vital functions like breathing and heart rate.The anatomy of the tegmentum is quite intricate. It is located beneath the cerebral aqueduct and is bordered by the tectum above. This area contains several important nuclei, such as the red nucleus and the substantia nigra, both of which are critical for movement coordination and reward pathways. The red nucleus, for instance, is involved in motor coordination, while the substantia nigra is known for its role in the production of dopamine, a neurotransmitter that influences mood and movement. Dysfunction in the tegmentum can lead to various neurological disorders, including Parkinson's disease, which is characterized by tremors and difficulty in movement.In addition to its role in motor functions, the tegmentum is also integral to the brain's reward system. It interacts with other regions, such as the limbic system, which is involved in emotion and motivation. When we engage in activities that are pleasurable or rewarding, the tegmentum releases dopamine, reinforcing those behaviors. This connection explains why certain stimuli can be so addictive, as they trigger the release of dopamine, creating a cycle of desire and reward.Moreover, the tegmentum plays a role in the sleep-wake cycle. It helps regulate arousal levels, influencing our alertness and ability to focus. Research has shown that disruptions in the function of the tegmentum can lead to sleep disorders, highlighting its importance in maintaining a healthy sleep pattern. Understanding the mechanisms of the tegmentum can provide insights into various conditions, from sleep apnea to attention deficit hyperactivity disorder (ADHD).In conclusion, the tegmentum is more than just a covering in the midbrain; it is a critical hub for many essential brain functions, including motor control, reward processing, and regulation of arousal. Its complex interactions with other brain regions underscore its importance in both normal functioning and the development of neurological disorders. As research continues to uncover the mysteries of the brain, the tegmentum remains a focal point for understanding how we move, feel, and respond to the world around us. By studying this area, scientists hope to develop better treatments for various conditions and enhance our overall understanding of the human brain.

人类大脑是一个极其复杂的器官，由多种结构组成，这些结构共同作用以控制我们的思想、运动和感觉。其中一个结构是中脑，它在许多功能中发挥着至关重要的作用。在中脑内有一个重要部分，称为tegmentum，这个词源于拉丁语，意为“覆盖”。tegmentum作为一个重要区域，连接了大脑的不同部分，充当各种神经信号的通路。它参与多个基本过程，包括运动控制、觉醒以及对呼吸和心率等生命功能的调节。tegmentum的解剖结构相当复杂。它位于脑室导水管下方，上方被顶盖所包围。该区域包含几个重要的核团，如红核和黑质，这两者对于运动协调和奖励通路至关重要。例如，红核参与运动协调，而黑质则以其在多巴胺生产中的作用而闻名，多巴胺是一种影响情绪和运动的神经递质。tegmentum的功能障碍可能导致各种神经系统疾病，包括帕金森病，其特征是震颤和运动困难。除了在运动功能中的作用外，tegmentum还与大脑的奖励系统密切相关。它与其他区域（如边缘系统）相互作用，后者涉及情感和动机。当我们参与愉快或有奖励的活动时，tegmentum会释放多巴胺，从而强化这些行为。这种联系解释了为什么某些刺激可能如此令人上瘾，因为它们触发多巴胺的释放，创造出一种欲望和奖励的循环。此外，tegmentum在睡眠-觉醒周期中也发挥着作用。它帮助调节觉醒水平，影响我们的警觉性和集中注意力的能力。研究表明，tegmentum功能的干扰可能导致睡眠障碍，强调了它在维持健康睡眠模式中的重要性。理解tegmentum的机制可以为各种病症提供见解，从睡眠呼吸暂停到注意缺陷多动障碍（ADHD）。总之，tegmentum不仅仅是中脑中的一个覆盖物；它是许多基本大脑功能的关键枢纽，包括运动控制、奖励处理和觉醒调节。它与其他大脑区域的复杂相互作用突显了其在正常功能和神经系统疾病发展中的重要性。随着研究的不断深入，揭示大脑的奥秘，tegmentum仍然是理解我们如何运动、感受和回应周围世界的焦点。通过研究这个区域，科学家希望开发出更好的治疗方法，以应对各种病症，并增强我们对人类大脑的整体理解。