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Olfaction01:25

Olfaction

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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...
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Updated: Jul 15, 2025

Applications of RNA Interference in American Cockroach
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美国的活性嗅觉.

Antoine Hoffmann1,2,3, Einat Couzin-Fuchs1,2,4

  • 1Department of Biology, University of Konstanz, 78457 Konstanz, Germany.

The Journal of experimental biology
|September 26, 2023
PubMed
概括

美国子积极地移动它们的天线来检测气味,将它们转移到气味流,并增加垂直运动. 这些天线扫描可以增强气味的捕获和传输,这对于在空气流量低的环境中进行导航至关重要.

关键词:
活动传感器 活动传感器天线运动天线运动.一个的.嗅觉是一种嗅觉.羽毛的可视化 羽毛可视化

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科学领域:

  • 动物行为 动物行为
  • 感官生物学 感官生物学
  • 神经伦理学 神经伦理学

背景情况:

  • 动物的运动对于获取感官信息至关重要,特别是在嗅觉中.
  • 主动传感包括控制运动以优化传感输入,影响气味采样和分子流.

研究的目的:

  • 研究昆虫天线如何与嗅觉环境相互作用.
  • 在气味呈现期间分析美国的天线动力学.

主要方法:

  • 对天线运动学的时空空间分析.
  • 在风洞设置中与美国进行的实验.
  • 呈现不同吸引力级别的气味 (殖民地提取物,布他诺,林纳醇).

主要成果:

  • 在气味呈现时观察到的天线动力学显著变化,包括向气味流转移和垂直运动增加.
  • 天线转移主要是单边的,而两个天线的总体范围保持一致.
  • 对于静态和运动刺激,结果是一致的,对有吸引力的气味的影响更为明显.
  • 在遇到气味时,观察到高频天线扫描和垂直冲击的增加,影响了嗅觉环境统计数据.

结论:

  • 昆虫的天线运动,特别是扫,积极参与气味的捕获和传输,类似于哺乳动物的嗅觉.
  • 天线动力学在产生气味间歇性方面发挥着关键作用,有助于在空气流量低的环境中导航.
  • 这项研究提供了一个模型系统,用于探索动物感知和运动之间的联系.