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Updated: Jul 12, 2025

A Free-breathing fMRI Method to Study Human Olfactory Function
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A Free-breathing fMRI Method to Study Human Olfactory Function

Published on: July 30, 2017

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嗅觉球体体积和形态变化在COVID-19患者的嗅觉障碍使用磁共振成像使用的嗅觉障碍

Ayşe Eda Parlak1, Ömer Tarik Selçuk2, Gamze Öztürk Yilmaz2

  • 1From the Departments of Radiology.

Journal of computer assisted tomography
|October 25, 2023
PubMed
概括

患有嗅觉功能障碍的COVID-19患者的嗅觉球体积和嗅觉深度降低,表明嗅觉通路受到直接损害. 这些测量可以帮助监测嗅觉神经的恢复.

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In Vivo Morphometric Analysis of Human Cranial Nerves Using Magnetic Resonance Imaging in Menière's Disease Ears and Normal Hearing Ears10:27

In Vivo Morphometric Analysis of Human Cranial Nerves Using Magnetic Resonance Imaging in Menière's Disease Ears and Normal Hearing Ears

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相关概念视频

Olfactory Receptors: Location and Structure01:03

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...
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Olfaction01:25

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...
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Physiology of Smell and Olfactory Pathway01:20

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...
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