相关实验视频
Updated: Jun 27, 2026

10:42
A Free-breathing fMRI Method to Study Human Olfactory Function
Published on: July 30, 2017
9.7K
嗅觉功能障碍的临界值和临界值以上成分分析:一个回顾性研究.
Berenice Stella Brabahar1, Regi Kurien1, Raga Panicker1
1Department of Otorhinolaryngology, Christian Medical College, Vellore, India.
The Journal of laryngology and otology
|December 7, 2023
概括
嗅觉功能障碍因鼻子状况和性别而异. 气味识别通常在炎症性鼻疾病中保持不变,这表明气味识别得分较高的患者的预后更好.
科学领域:
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 神经科学是一个神经科学.
- 感官科学 感官科学
背景情况:
- 嗅觉功能障碍显著影响生活质量.
- 了解嗅觉损失的变化对于诊断和治疗至关重要.
- 康涅狄格州化学感官临床研究中心 (CCCRC) 测试是评估嗅觉功能的标准工具.
研究的目的:
- 用CCCRC测试分析嗅觉值和气味识别的变化.
- 为了研究不同程度的嗅觉功能障碍之间的这些变化.
- 检查各种鼻子疾病对嗅觉损失的影响.
主要方法:
- 追溯观察性研究设计.
- 使用了CCCRC嗅觉测试的数据.
- 分析了嗅觉值和气味识别得分.
主要成果:
- 嗅觉功能障碍主要影响所有年级的男性.
- 在没有息肉的慢性鼻炎中,无氧性/严重的低氧性较为普遍 (87.5%),而不是那些有息肉的人 (68%).
- 缩性鼻炎和创伤后损失显示出高率的厌氧 (90%),与过敏性鼻炎 (30.7%) 相反. 胡是最受影响的气味,除了缩性鼻炎,阿萨法提达和婴儿粉更受影响.
结论:
- 在大多数炎症性鼻腔疾病中,嗅觉识别相对保持良好,即使最大值受损.
- 保存的超值气味识别得分可能表明具有类似CCCRC测试得分的患者的预后更好.
- 这些发现强调了评估嗅觉功能障碍的门和识别的重要性.
相关概念视频
Olfaction
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...
The olfactory receptors are embedded in the cilia of the...
Olfactory Receptors: Location and Structure
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...
Physiology of Smell and Olfactory Pathway
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...
The olfactory...

