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相关概念视频

Olfaction01:25

Olfaction

44.3K
The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
44.3K
Physiology of Smell and Olfactory Pathway01:20

Physiology of Smell and Olfactory Pathway

8.3K
Humans detect odors with the help of specialized cells located in the upper part of the nasal cavity, called olfactory receptor neurons (ORNs). ORNs possess hair-like structures called cilia, which are receptive to sensations from the inhaled air. When an odorant molecule binds to a specific receptor on the cell of the cilia, it leads to a series of events that ultimately cause the ORN to send electrical signals to the olfactory bulb in the brain through the olfactory nerves.
The olfactory...
8.3K
Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

9.2K
The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
9.2K

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相关实验视频

Updated: Jun 24, 2025

An Explant System for Time-Lapse Imaging Studies of Olfactory Circuit Assembly in Drosophila
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An Explant System for Time-Lapse Imaging Studies of Olfactory Circuit Assembly in Drosophila

Published on: October 13, 2021

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塑造嗅觉地图:细胞类型特定的活动模式指导电路形成.

Ai Nakashima1, Haruki Takeuchi2

  • 1Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan.

Frontiers in neural circuits
|June 11, 2024
PubMed
概括
此摘要是机器生成的。

神经活动模式,而不仅仅是同步发射,塑造大脑的感官地图. 嗅觉系统中自发的,细胞特异的定时,为神经电路的发展提供了新的见解.

关键词:
基因表达的基因表达方式神经活动的神经活动.神经发育 神经发育气味受体的受体是臭味的受体.嗅觉地图 嗅觉地图 嗅觉地图

更多相关视频

Quadruple Immunostaining of the Olfactory Bulb for Visualization of Olfactory Sensory Axon Molecular Identity Codes
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Quadruple Immunostaining of the Olfactory Bulb for Visualization of Olfactory Sensory Axon Molecular Identity Codes

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The Olfactory System as a Model to Study Axonal Growth Patterns and Morphology In Vivo
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The Olfactory System as a Model to Study Axonal Growth Patterns and Morphology In Vivo

Published on: October 30, 2014

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相关实验视频

Last Updated: Jun 24, 2025

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An Explant System for Time-Lapse Imaging Studies of Olfactory Circuit Assembly in Drosophila

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Quadruple Immunostaining of the Olfactory Bulb for Visualization of Olfactory Sensory Axon Molecular Identity Codes
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The Olfactory System as a Model to Study Axonal Growth Patterns and Morphology In Vivo
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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
  • 感官系统 感官系统

背景情况:

  • 大脑形成有组织的感官地图来处理信息.
  • 传统上,同步的神经元活动被认为是感官地图形成的关键.

研究的目的:

  • 审查最近关于自发神经活动在感官地图开发中的作用的发现.
  • 挑战关于感官地图形成的传统观点.
  • 突出时空动态在神经电路发展中的重要性.

主要方法:

  • 审查关于神经活动和感官地图形成的现有文献.
  • 专注于来自嗅觉系统的证据.
  • 对细胞类型特定的自发活动时间模式的分析.

主要成果:

  • 最近的证据表明,细胞类型特定的自发活动的时间模式对塑造嗅觉质地图具有教导性.
  • 这挑战了传统的观点,即只有同步活动才是重要的.
  • 神经活动的时空动态对于理解神经电路的发展至关重要.

结论:

  • 自发的神经活动模式在感官地图的发展中起着至关重要的作用.
  • 未来的研究应该专注于神经活动的时空动态.
  • 了解这些动态对于理解复杂的神经电路形成至关重要.