Elektrogramm der Nasenflügelmuskeln und Nasenwiderstandskurve

Dishoeck, H. A. E. van

doi:10.3109/00016483709127966

Cited by 33 publications

(7 citation statements)

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“…Contraction ofthe alar muscles flare the external nares. In humans and anaesthetized animals as well, alae nasi activation results in a decrease in nasal and total respiratory resistance (von Dishoeck, 1937;McCaffrey & Kern, 1979;Carlo, Martin, Bruce, Strohl & Fanaroff, 1983;Mathew, 1984).…”

Section: Introductionmentioning

confidence: 99%

Respiratory activation of the facial nerve and alar muscles in anaesthetized dogs.

Strohl

1985

The Journal of Physiology

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SUMMARY1. Comparisons were made of the activities of the dorsal buccal branch (d.b.b.) of the facial nerve which innervates the alae nasi and of the alar muscles themselves (alae nasi) with the activity ofthe phrenic nerve in eight anaesthetized, spontaneously breathing dogs during hypercapnia, end-expiratory airway occlusion, and chest wall compression, before and after vagotomy. Nerve and muscle activities were recorded from bipolar cuff or wire electrodes respectively and processed by a moving average technique.2. Peak facial d.b.b., alae nasi, and phrenic activity all increased linearly with hypercapnia.3. Airway occlusion prolonged the duration of phrenic as well as facial d.b.b. and alae nasi activity. A comparison of electrical activity during unoccluded and occluded inspirations indicated a facilitation of phrenic activity but an inhibition of both facial d.b.b. and alae nasi activities associated with volume feed-back. These volume-related feed-back effects were abolished by vagotomy. 4. After vagotomy, peak facial d.b.b., alae nasi and phrenic activities increased during lower chest wall compression and decreased with upper chest wall compression when compared to the preceding control breath.5. Alae nasi and facial nerve activities, like that of the phrenic nerve, respond to respiratory chemical and reflex influences.

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Section: Introductionmentioning

confidence: 99%

Respiratory activation of the facial nerve and alar muscles in anaesthetized dogs.

Strohl

1985

The Journal of Physiology

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“…We found EMG act•vity during inspiration in the dilator naris, the nasalis muscle (alar and transverse parts) and the apicis nasi. Previous EMG studies using single point measurements have already shown activity in the dilator naris during respiration [2,3,8,[12][13][14]16]. Our study, using a multipoint measuring technique, shows that apart from the dilator naris, both alar and transverse parts of the nasalis muscle and the apicis nasi are active in the inspiratory phase of respiration.…”

Section: Discussionmentioning

confidence: 63%

“…The efferent limb of this reflex is the facial nerve. This is illustrated in facial palsy, when absence of nasal muscle activity may result in inspiratory alar collapse [16]. The structure of nasal afferent end organs has not yet been identified [18].…”

Section: Discussionmentioning

confidence: 99%

“…The structure of nasal afferent end organs has not yet been identified [18]. Reduction of EMG activity by topical anesthesia of the nasal mucosa [17] and by mouth or tracheostomy breathing [2,8,16] suggests that mechanoreceptors in the nasal mucosa may be important in triggering a nasonasal reflex. In our study the pattern of EMG activity during mouth breathing was very similar to the pattern of EMG activity during nasal breathing.…”

Section: Discussionmentioning

confidence: 99%

“…Electromyographic (EMG) techniques have been used to study one of the muscles of the nose, the dilator naris (or alae nasi muscle), in relation to breathing and upper airway resistance [2,3,8,[12][13][14][15][16]. These studies demonstrated a phasic inspiratory muscle activity, indicating that at least this particular nasal muscle functions as a muscle of respiration.…”

Section: Introductionmentioning

confidence: 99%

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Electromyography of the human nasal muscles

Bruintjes¹,

Olphen²,

Hillen

et al. 1996

Eur Arch Otorhinolaryngol

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Electromyographic (EMG) activity of six nasal muscles was monitored in 17 male volunteers without nasal complaints. Surface electrodes were placed on the nasal skin in such a way that they selectively recorded the activity of these muscles. Recordings were made under different breathing conditions and during voluntary nasal movements. Inspiratory EMG activity was observed during nasal and oral breathing in one or more of the following muscles: dilator naris, nasalis muscle (alar and transverse parts) and apicis nasi. EMG activity increased markedly in response to physical exercise and was more often present in subjects with decreased nasal patency. During voluntary nasal movements a combined activity of the six nasal muscles was consistently found. We conclude that the function of the dilator naris, the nasalis muscle and the apicis nasi strongly relates to respiration. These muscles probably contribute to the prevention of collapse of the nasal valve. The role of the procerus and levator labii superioris alaeque nasi seems to be primarily concerned with facial expression.

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