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单词 Nasal cycle
释义

Nasal cycle

英语百科

Nasal cycle

A CT scan showing evidence of the nasal cycle. The more patent airway is on the right of the image; the swollen turbinates congesting the left.

The nasal cycle is the often unnoticed alternating partial congestion and decongestion of the nasal cavities in humans and other animals. It is a physiological congestion of the nasal concha due to selective activation of one half of the autonomic nervous system by the hypothalamus. It should not be confused with pathological nasal congestion. Although various aspects of the nasal cycle have been studied and discussed in the ancient Yogic literature, in the modern western literature, it was first described by the German physician Richard Kayser in 1895.

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更新时间:2025/6/23 6:44:19