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Yuri P. Ulyanov, MD
Moscow, Russia

Arch Otolaryngol Head Neck Surg. 1995;121(3):352.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

A new device, especially designed to analyze the actual developments of the airflow in the nasal passages, was used in our studies, employing a technique suggested by me (patents of the Russian Federation No. 1572505 and No. 1602472). It proved possible to devise a graph of nasal aerodynamics in the following manner for the first time.

Inhaled air is divided in the nose into three streams of air passing through the upper, median, and lower nasal passages. At the same time, 10 arbitrary units of air flow through the upper passage, 80 units through the median, and 20 units through the lower passage. This distribution of airflow moistens and warms the air in the median and upper nasal passages wherein all paranasal sinuses open, with the latter washed by the airstream at inhalation. Owing to a lack of sinuses, the airstream flowing through the lower passage does not face similar . . . [Full Text PDF of this Article]

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