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相关概念视频

Nervous Tissue: Glial Cells01:31

Nervous Tissue: Glial Cells

Glia, or neuroglia, are vital support cells that assist neurons in their functions. The term "glia" originates from the Greek word for "glue," reflecting their role in holding the nervous system together. These cells can be categorized into six types: four in the central nervous system (CNS) and two in the peripheral nervous system (PNS).
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial cells that interact...
Glial Cells01:04

Glial Cells

Overview
The Synapse02:47

The Synapse

Neurons communicate with one another by passing on their electrical signals to other neurons. A synapse is the location where two neurons meet to exchange signals. At the synapse, the neuron that sends the signal is called the presynaptic cell, while the neuron that receives the message is called the postsynaptic cell. Note that most neurons can be both presynaptic and postsynaptic, as they both transmit and receive information.
Ligand-Gated Ion Channel Receptor: Gating Mechanism01:30

Ligand-Gated Ion Channel Receptor: Gating Mechanism

Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
Nervous Tissue: Myelin01:25

Nervous Tissue: Myelin

The myelin sheath is a multilayered lipid and protein covering that insulates the axon of a neuron, enhancing the speed of nerve impulse conduction. Axons without this sheath are referred to as unmyelinated. Two types of neuroglia, Schwann cells in the peripheral nervous system (PNS) and oligodendrocytes in the central nervous system (CNS) are responsible for producing myelin sheaths.
Schwann cells begin to form myelin sheaths around axons during fetal development. They wrap around a small...
Synaptic Signaling01:12

Synaptic Signaling

Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.

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相关实验视频

Updated: May 9, 2026

Dissection and Isolation of Murine Glia from Multiple Central Nervous System Regions
08:00

Dissection and Isolation of Murine Glia from Multiple Central Nervous System Regions

Published on: June 4, 2020

质细胞保持突触分布的秘密.

Laura E Clarke1, Ben A Barres

  • 1Department of Neurobiology, Stanford University School of Medicine, Stanford, CA 94305, USA. lclarke2@stanford.edu

Cell
|July 23, 2013
PubMed
概括
此摘要是机器生成的。

质细胞在引导神经细胞轴突到正确的目标中发挥着至关重要的作用. 这项研究强调了在神经系统发育过程中保持适当的突触连接的质细胞的功能.

更多相关视频

Application of MultiColor FlpOut Technique to Study High Resolution Single Cell Morphologies and Cell Interactions of Glia in Drosophila
08:30

Application of MultiColor FlpOut Technique to Study High Resolution Single Cell Morphologies and Cell Interactions of Glia in Drosophila

Published on: October 20, 2017

Quantifying Synapses: an Immunocytochemistry-based Assay to Quantify Synapse Number
18:11

Quantifying Synapses: an Immunocytochemistry-based Assay to Quantify Synapse Number

Published on: November 16, 2010

相关实验视频

Last Updated: May 9, 2026

Dissection and Isolation of Murine Glia from Multiple Central Nervous System Regions
08:00

Dissection and Isolation of Murine Glia from Multiple Central Nervous System Regions

Published on: June 4, 2020

Application of MultiColor FlpOut Technique to Study High Resolution Single Cell Morphologies and Cell Interactions of Glia in Drosophila
08:30

Application of MultiColor FlpOut Technique to Study High Resolution Single Cell Morphologies and Cell Interactions of Glia in Drosophila

Published on: October 20, 2017

Quantifying Synapses: an Immunocytochemistry-based Assay to Quantify Synapse Number
18:11

Quantifying Synapses: an Immunocytochemistry-based Assay to Quantify Synapse Number

Published on: November 16, 2010

科学领域:

  • 神经科学是一个神经科学.
  • 发展生物学 发展生物学
  • 细胞生物学 细胞生物学

背景情况:

  • 轴指导对于建立功能神经电路至关重要.
  • 在神经系统发育过程中,正确维护轴突位置至关重要.
  • 质细胞在精确的布线和连接中的作用是正在进行的研究领域.

研究的目的:

  • 研究质细胞在维持正确的突触连接中的作用.
  • 阐明质细胞在发育过程中影响轴突定位的机制.

主要方法:

  • 这项研究可能涉及体内成像或模型生物中的基因操纵技术.
  • 分析轴突路径和突触形成在存在或缺少特定的质功能.

主要成果:

  • 肖等人. 肖和其他人. (2013) 确定了质细胞在保持正确的突触连接方面发挥的关键作用.
  • 在发育成长过程中,Glia积极帮助保持轴突的精确定位.

结论:

  • 质细胞不仅仅是支持性的,而且积极参与神经系统的精确布线.
  • 了解质的作用是理解神经电路形成和潜在的发育障碍的关键.