Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Distributed Loads01:19

Distributed Loads

575
Distributed loads are a common type of load that engineers and scientists encounter in various practical situations. Distributed loads often refer to a type of load spread over a surface or a structure and can be modeled as continuous force per unit area.
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
575
Distributed Loads: Problem Solving01:21

Distributed Loads: Problem Solving

691
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
691
Neuronal Communication01:28

Neuronal Communication

1.2K
Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
1.2K
Neural Circuits01:25

Neural Circuits

1.4K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
1.4K
Neurons as Communicators of the Brain01:22

Neurons as Communicators of the Brain

1.4K
Neurons, the fundamental units of the brain and nervous system, function as the primary transmitters of information throughout the body. Their ability to communicate through electrical and chemical signals is vital for every bodily function, from regulating the heartbeat to processing complex thoughts. Each neuron has three main components: the cell body (soma), dendrites, and an axon, each specialized to facilitate swift and efficient neural communication.
Cell Body
The cell body, also known...
1.4K
Neurons: The Axon01:21

Neurons: The Axon

3.9K
Axons are long, cytoplasmic processes of nerve cells capable of propagating electrical impulses known as action potentials. The cytoplasm or axoplasm of an axon contains neurofibrils, neurotubules, small vesicles, lysosomes, mitochondria, and various enzymes, all encased within the axolemma, the plasma membrane of the axon.
The axon attaches to the cell body at a cone-shaped elevation called the axon hillock. The initial part of the axon, closest to the hillock, is known as the initial segment....
3.9K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

How do we facilitate individuals with recurrent headache and migraine receiving evidence-based behavioral treatment?

Cephalalgia : an international journal of headache·2026
Same author

Connectome of a human foveal retina.

bioRxiv : the preprint server for biology·2025
Same author

Color Vision 2025: Introduction by the feature editors.

Journal of the Optical Society of America. A, Optics, image science, and vision·2025
Same author

Spatial Distribution and Morphology of CaMKII-Expressing Amacrine Cells in Marmoset, Macaque, and Human Retina.

The Journal of comparative neurology·2025
Same author

Immunohistochemistry and Spatial Density of Müller Cells in the Human Fovea.

Investigative ophthalmology & visual science·2025
Same author

Thorny and Tufted Retinal Ganglion Cells Express the Transcription Factor Forkhead Proteins Foxp1 and Foxp2 in Marmoset (Callithrix jacchus).

The Journal of comparative neurology·2024
Same journal

A native sulfur deposit in Gale crater, Mars.

Science (New York, N.Y.)·2026
Same journal

Coordinated demise of harmful algal blooms.

Science (New York, N.Y.)·2026
Same journal

Genetic effects put into context.

Science (New York, N.Y.)·2026
Same journal

Bacteria share proteins to survive antibiotics.

Science (New York, N.Y.)·2026
Same journal

Impacts shaped Earth's first continents.

Science (New York, N.Y.)·2026
Same journal

Erratum for the Report "Covalently bonded single-molecule junctions with stable and reversible photoswitched conductivity" by C. Jia <i>et al</i>.

Science (New York, N.Y.)·2026
查看所有相关文章

相关实验视频

Updated: Aug 12, 2025

A Multi-compartment CNS Neuron-glia Co-culture Microfluidic Platform
13:24

A Multi-compartment CNS Neuron-glia Co-culture Microfluidic Platform

Published on: September 10, 2009

12.1K

神经元共享强烈的负载

Paul R Martin1

  • 1The University of Sydney Save Sight Institute, Sydney, Australia.

Science (New York, N.Y.)
|January 26, 2023
PubMed
概括
此摘要是机器生成的。

眼睛中的细胞会感知一天的时间, 并根据光线强度调整它们的反应. 这有助于调节身体的内部时钟和日常节奏.

更多相关视频

Preparation of Neuronal Co-cultures with Single Cell Precision
09:06

Preparation of Neuronal Co-cultures with Single Cell Precision

Published on: May 20, 2014

13.8K
Rewiring Neuronal Circuits: A New Method for Fast Neurite Extension and Functional Neuronal Connection
10:26

Rewiring Neuronal Circuits: A New Method for Fast Neurite Extension and Functional Neuronal Connection

Published on: June 13, 2017

8.8K

相关实验视频

Last Updated: Aug 12, 2025

A Multi-compartment CNS Neuron-glia Co-culture Microfluidic Platform
13:24

A Multi-compartment CNS Neuron-glia Co-culture Microfluidic Platform

Published on: September 10, 2009

12.1K
Preparation of Neuronal Co-cultures with Single Cell Precision
09:06

Preparation of Neuronal Co-cultures with Single Cell Precision

Published on: May 20, 2014

13.8K
Rewiring Neuronal Circuits: A New Method for Fast Neurite Extension and Functional Neuronal Connection
10:26

Rewiring Neuronal Circuits: A New Method for Fast Neurite Extension and Functional Neuronal Connection

Published on: June 13, 2017

8.8K

科学领域:

  • 眼科 眼科
  • 时间生物学
  • 细胞生物学

背景情况:

  • 生物节奏或内在生物钟, 控制着每天的生理周期.
  • 照明是主要的环境信号, 同步生理节律.
  • 众所周知,眼睛内的特殊细胞会检测光线并影响昼夜时间.

研究的目的:

  • 研究特定视网膜细胞在检测白天时间中的作用.
  • 了解这些细胞如何根据光线强度调节它们的反应.

主要方法:

  • 使用电网膜学测量视网膜细胞活动.
  • 使用体内成像来监测细胞对光的反应.
  • 分析了视网膜细胞在不同时间的基因表达模式.

主要成果:

  • 识别了视网膜细胞的不同群体,表现出与一天时间相关的活动.
  • 证明这些细胞对不同强度的光有个性化反应.
  • 观察到细胞反应模式与已确定的昼夜标志物之间的相关性.

结论:

  • 视网膜细胞在检测白天时间方面发挥着至关重要的作用,
  • 这些细胞向大脑提供定制的光学信息,
  • 这些发现提供了关于昼夜活动的神经机制的新见解.