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相关概念视频

Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

8.9K
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...
8.9K
Olfaction01:25

Olfaction

44.2K
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...
44.2K
Physiology of Smell and Olfactory Pathway01:20

Physiology of Smell and Olfactory Pathway

8.1K
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...
8.1K

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Simultaneous detection and estimation in olfactory sensing.

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相关实验视频

Updated: Jun 9, 2025

Visually Mediated Odor Tracking During Flight in Drosophila
08:50

Visually Mediated Odor Tracking During Flight in Drosophila

Published on: January 26, 2009

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在波动的环境中嗅觉导航.

Venkatesh N Murthy1

  • 1Center for Brain Science, Department of Molecular and Cellular Biology, Kempner Institute for the Study of Natural and Artificial Intelligence, Harvard University, Cambridge, MA 02138, USA.

Current biology : CB
|October 22, 2024
PubMed
概括
此摘要是机器生成的。

动物使用化学感官进行导航,比如嗅觉,尽管它们在空气或水中不可预测的运输. 了解气味物理可以解释动物的导航策略及其神经执行.

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High-resolution Quantification of Odor-guided Behavior in Drosophila melanogaster Using the Flywalk Paradigm
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High-resolution Quantification of Odor-guided Behavior in Drosophila melanogaster Using the Flywalk Paradigm

Published on: December 11, 2015

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Author Spotlight: Understanding Processing of Olfactory and Spatial Information by Brain with Real-Time Behavioral Analysis
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Author Spotlight: Understanding Processing of Olfactory and Spatial Information by Brain with Real-Time Behavioral Analysis

Published on: September 20, 2024

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相关实验视频

Last Updated: Jun 9, 2025

Visually Mediated Odor Tracking During Flight in Drosophila
08:50

Visually Mediated Odor Tracking During Flight in Drosophila

Published on: January 26, 2009

9.9K
High-resolution Quantification of Odor-guided Behavior in Drosophila melanogaster Using the Flywalk Paradigm
13:31

High-resolution Quantification of Odor-guided Behavior in Drosophila melanogaster Using the Flywalk Paradigm

Published on: December 11, 2015

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Author Spotlight: Understanding Processing of Olfactory and Spatial Information by Brain with Real-Time Behavioral Analysis
06:21

Author Spotlight: Understanding Processing of Olfactory and Spatial Information by Brain with Real-Time Behavioral Analysis

Published on: September 20, 2024

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科学领域:

  • 感官生物学 感官生物学
  • 动物行为 动物行为
  • 生物物理学的生物物理.

背景情况:

  • 人类主要使用光和声音进行导航,这些光和声音以可预测的方式行驶.
  • 许多动物在方向和运动方面严重依赖化学感官.
  • 气味的传输受到动荡的空气和水流的影响,这给导航带来了挑战.

研究的目的:

  • 探索动物如何使用化学感官导航,尽管气味传输的不可预测性质.
  • 将气味散发的物理与动物导航策略联系起来.
  • 为未来关于嗅觉导航背后的神经和身体机制的研究提供信息.

主要方法:

  • 这项研究结合了流体动力学和动物行为的原则.
  • 它分析了各种介质 (空气,水) 中气味传输的物理.
  • 它回顾了关于动物嗅觉导航策略的现有文献.

主要成果:

  • 动物已经发展出复杂的策略来克服乱的气味传输的挑战.
  • 这些策略使动物能够有效地找到食物,伴侣和家园.
  • 气味羽毛的物理特性显著影响动物的运动模式.

结论:

  • 了解气味传输的物理原理对于破译动物导航至关重要.
  • 了解气味物理学的知识可以指导研究动物使用的大脑和身体算法.
  • 这项研究突出了环境物理与生物适应之间的复杂关系.