Collapsing Alae Nasi
نویسندگان
چکیده
منابع مشابه
Alae nasi activation decreases nasal resistance during hyperoxic hypercapnia.
It has been proposed that decreases in nasal resistance (Rn) during hypercapnia are entirely due to vasoconstriction in the nasal cavity. We hypothesized that alae nasi (AN) muscle activity dilates the nasal vestibule and contributes to the decrease in Rn during hypercapnia. Nine normal subjects were studied during hyperoxic hypercapnia (HH). Rn and vestibular resistance (Rvest) for one nasal p...
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The upper airway is a complicated structure that is usually widely patent during inspiration. However, on inspiration during certain physiological and pathophysiological states, the nares, pharynx, and larynx may collapse. Collapse at these locations occurs when the transmural pressure (Ptm) at a flow-limiting site (FLS) falls below a critical level (Ptm'). On airway collapse, inspiratory airfl...
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MR imaging opens the opportunity to image soft materials in the human body non-invasively and to observe the behavior of organs and muscles over a period of time. In this paper, a simple and easy-to-use method to track and measure the movement of the nasal walls during breathing is presented that uses a sum of three Gaussian functions as an estimator for the intensity distribution of the MR ima...
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ژورنال
عنوان ژورنال: ORL
سال: 1962
ISSN: 1423-0275,0301-1569
DOI: 10.1159/000274434