Relevant bibliographies by topics / Tensor palatini

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Academic literature on the topic 'Tensor palatini'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Tensor palatini"

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Kogo, Mikihiko, Takuya Kurimoto, Hidehiko Koizumi, Juntaro Nishio, and Tokuzo Matsuya. "Respiratory Activities in Relation to Palatal Muscle Contraction." Cleft Palate-Craniofacial Journal 29, no. 2 (1992): 174–78. http://dx.doi.org/10.1597/1545-1569_1992_029_0174_rairtp_2.3.co_2.

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This study Investigated the activities of the tensor and levator veli palatini muscles related to respiration. During quiet breathing, no activity was observed in either muscle. With either hypercapnic or hypoxemic condition, the tensor veli palatini muscle exhibited phasic activity during inspiration. The levator veli palatini muscle showed phasic activity during expiration with hypoxemia (PaO2 < 40 mm Hg). NaCN perfused bilaterally through the carotid sinus induced these respiratory activities. The tensor veli palatini muscle was more sensitive than the levator veli palatini muscle to NaCN.
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Barsoumian, Raffi, David P. Kuehn, Jerald B. Moon, and John W. Canady. "An Anatomic Study of the Tensor Veli Palatini and Dilatator Tubae Muscles in Relation to Eustachian Tube and Velar Function." Cleft Palate-Craniofacial Journal 35, no. 2 (1998): 101–10. http://dx.doi.org/10.1597/1545-1569_1998_035_0101_aasott_2.3.co_2.

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In a gross anatomic study of 20 sides in 16 human head specimens, the tensor veli palatini, the dilatator tubae, and the tensor tympani muscles were studied. The tensor veli palatini was observed to insert onto the anterior one-third of the pterygoid hamulus, whereas the dilatator tubae rounded the middle one-third of the pterygoid hamulus without an insertion. Thus, the dilatator tubae, not the tensor veli palatini, could serve to tense the anterior velum. An insertion from the superior pharyngeal constrictor muscle onto the posterior one-third of the hamulus could provide a curbing function for the dilatator tubae muscle. Adipose tissue, located at the hamulus, could provide lubrication for the tendinous fibers of the dilatator tubae as they round the hamulus. The dilatator tubae was observed to attach to the hook of the eustachian tube and is accepted as the tubal dilator. Observed on 13 of 20 sides in 11 specimens, the bulk of the dilatator tubae remained distinct from the tensor veli palatini despite a connective tissue alliance and intermingling of some muscle fibers. On 5 of 20 sides in 5 specimens, fibers of the dilatator tubae intermingled extensively with the tensor veli palatini. Of the 20 dilatator tubae muscles dissected, 2 were observed to be deficient. The tensor veli palatini was observed to be continuous with the tensor tympani. Full color versions of the figures are available at the following website: http://www.shc.uiowa.edu/papers/tensor/ .
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Amis, T. C., N. O’Neill, J. R. Wheatley, T. van der Touw, E. di Somma, and A. Brancatisano. "Soft palate muscle responses to negative upper airway pressure." Journal of Applied Physiology 86, no. 2 (1999): 523–30. http://dx.doi.org/10.1152/jappl.1999.86.2.523.

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The afferent pathways and upper airway receptor locations involved in negative upper airway pressure (NUAP) augmentation of soft palate muscle activity have not been defined. We studied the electromyographic (EMG) response to NUAP for the palatinus, tensor veli palatini, and levator veli palatini muscles in 11 adult, supine, tracheostomized, anesthetized dogs. NUAP was applied to the nasal or laryngeal end of the isolated upper airway in six dogs and to four to six serial upper airway sites from the nasal cavity to the subglottis in five dogs. When NUAP was applied at the larynx, peak inspiratory EMG activity for the palatinus and tensor increased significantly ( P< 0.05) and plateaued at a NUAP of −10 cmH2O. Laryngeal NUAP failed to increase levator activity consistently. Nasal NUAP did not increase EMG activity for any muscle. Consistent NUAP reflex recruitment of soft palate muscle activity only occurred when the larynx was exposed to the stimulus and, furthermore, was abolished by bilateral section of the internal branches of the superior laryngeal nerves. We conclude that soft palate muscle activity may be selectively modulated by afferent activity originating in the laryngeal and hypopharyngeal airway.
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Picciotti, P. M., G. Della Marca, L. D'Alatri, D. Lucidi, M. Rigante, and E. Scarano. "Tensor veli palatini electromyography for monitoring Eustachian tube rehabilitation in otitis media." Journal of Laryngology & Otology 131, no. 5 (2017): 411–16. http://dx.doi.org/10.1017/s0022215117000482.

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AbstractBackground:The pathogenesis of otitis media is related to Eustachian tube dysfunction. The tensor veli palatini muscle actively opens the Eustachian tube and promotes middle-ear ventilation. This study describes a technique for paratubal electromyography that uses a surface, non-invasive electrode able to record tensor veli palatini muscle activity during swallowing.Methods:Twenty otitis media patients and 10 healthy patients underwent tensor veli palatini electromyography. Activity of this muscle before and after Eustachian tube rehabilitation was also assessed.Results:In 78.5 per cent of patients, the electromyography duration phase and/or amplitude were reduced in the affected side. The muscle action potential was impaired in all patients who underwent Eustachian tube rehabilitation.Conclusion:This study confirmed that Eustachian tube muscle dysfunction has a role in otitis media pathogenesis and showed that muscle activity increases after Eustachian tube rehabilitation therapy.
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Schwarz, Peter B., and John H. Peever. "Dopamine triggers skeletal muscle tone by activating D1-like receptors on somatic motoneurons." Journal of Neurophysiology 106, no. 3 (2011): 1299–309. http://dx.doi.org/10.1152/jn.00230.2011.

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The dopamine system plays an integral role in motor physiology. Dopamine controls movement by modulation of higher-order motor centers (e.g., basal ganglia) but may also regulate movement by directly controlling motoneuron function. Even though dopamine cells synapse onto motoneurons, which themselves express dopamine receptors, it is unknown whether dopamine modulates skeletal muscle activity. Therefore, we aimed to determine whether changes in dopaminergic neurotransmission at a somatic motor pool affect motor outflow to skeletal muscles. We used microinjection, neuropharmacology, electrophysiology, and histology to determine whether manipulation of D1- and D2-like receptors on trigeminal motoneurons affects masseter and/or tensor palatini muscle tone in anesthetized rats. We found that apomorphine (a dopamine analog) activated trigeminal motoneurons and triggered a potent increase in both masseter and tensor palatini tone. This excitatory effect is mediated by D1-like receptors because specific D1-like receptor activation strengthened muscle tone and blockade of these receptors prevented dopamine-driven activation of motoneurons. Blockade of D1-like receptors alone had no detectable effect on basal masseter/tensor palatini tone, indicating the absence of a functional dopamine drive onto trigeminal motoneurons, at least during isoflurane anesthesia. Finally, we showed that D2-like receptors do not affect either trigeminal motoneuron function or masseter/tensor palatini muscle tone. Our results provide the first demonstration that dopamine can directly control movement by manipulating somatic motoneuron behavior and skeletal muscle tone.
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De la Cuadra Blanco, C., M. D. Peces Peña, J. F. Rodríguez-Vázquez, J. A. Mérida-Velasco, and J. R. Mérida-Velasco. "Development of the Human Tensor Veli Palatini." Cells Tissues Organs 195, no. 5 (2012): 392–99. http://dx.doi.org/10.1159/000329253.

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Casselbrant, Margaretha L., Erdem I. Cantekin, Dennis C. Dirkmaat, William J. Doyle, and Charles D. Bluestone. "Experimental paralysis of tensor veli palatini muscle." Acta Oto-Laryngologica 106, no. 3-4 (1988): 178–85. http://dx.doi.org/10.3109/00016488809106423.

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Kuehn, David P., Pamela J. Templeton, and Jerry A. Maynard. "Muscle Spindles in the Velopharyngeal Musculature of Humans." Journal of Speech, Language, and Hearing Research 33, no. 3 (1990): 488–93. http://dx.doi.org/10.1044/jshr.3303.488.

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Seven muscles in the velopharyngeal region of humans were studied histologically to determine the presence of muscle spindles. Typical spindles were found in palatoglossus and tensor veli palatini with a greater number in the latter. Spindles were not found in levator veli palatini, palatopharyngeus, musculus uvulae, salpingopharyngeus, or the superior pharyngeal constrictor.
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Carberry, Jayne C., Hanna Hensen, Lauren P. Fisher, et al. "Mechanisms contributing to the response of upper-airway muscles to changes in airway pressure." Journal of Applied Physiology 118, no. 10 (2015): 1221–28. http://dx.doi.org/10.1152/japplphysiol.01103.2014.

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This study assessed the effects of inhaled lignocaine to reduce upper airway surface mechanoreceptor activity on 1) basal genioglossus and tensor palatini EMG, 2) genioglossus reflex responses to large pulses (∼10 cmH2O) of negative airway pressure, and 3) upper airway collapsibility in 15 awake individuals. Genioglossus and tensor palatini muscle EMG and airway pressures were recorded during quiet nasal breathing and during brief pulses (250 ms) of negative upper-airway pressure. Lignocaine reduced peak inspiratory (5.6 ± 1.5 vs. 3.8 ± 1.1% maximum; mean ± SE, P < 0.01) and tonic (2.8 ± 0.8 vs. 2.1 ± 0.7% maximum; P < 0.05) genioglossus EMG during quiet breathing but had no effect on tensor palatini EMG (5.0 ± 0.8 vs. 5.0 ± 0.5% maximum; P = 0.97). Genioglossus reflex excitation to negative pressure pulses decreased after anesthesia (60.9 ± 20.7 vs. 23.6 ± 5.2 μV; P < 0.05), but not when expressed as a percentage of the immediate prestimulus baseline. Reflex excitation was closely related to the change in baseline EMG following lignocaine ( r2 = 0.98). A short-latency genioglossus reflex to rapid increases from negative to atmospheric pressure was also observed. The upper airway collapsibility index (%difference) between nadir choanal and epiglottic pressure increased after lignocaine (17.8 ± 3.7 vs. 28.8 ± 7.5%; P < 0.05). These findings indicate that surface receptors modulate genioglossus but not tensor palatini activity during quiet breathing. However, removal of input from surface mechanoreceptors has minimal effect on genioglossus reflex responses to large (∼10 cmH2O), sudden changes in airway pressure. Changes in pressure rather than negative pressure per se can elicit genioglossus reflex responses. These findings challenge previous views and have important implications for upper airway muscle control.
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Bronnikov, Kirill, Sergey Bolokhov, and Milena Skvortsova. "Hybrid Metric-Palatini Gravity: Regular Stringlike Configurations." Universe 6, no. 10 (2020): 172. http://dx.doi.org/10.3390/universe6100172.

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We discuss static, cylindrically symmetric vacuum solutions of hybrid metric-Palatini gravity (HMPG), a recently proposed theory that has been shown to successfully pass the local observational tests and produce a certain progress in cosmology. We use HMPG in its well-known scalar-tensor representation. The latter coincides with general relativity containing, as a source of gravity, a conformally coupled scalar field ϕ and a self-interaction potential V(ϕ). The ϕ field can be canonical or phantom, and, accordingly, the theory splits into canonical and phantom sectors. We seek solitonic (stringlike) vacuum solutions of HMPG, that is, completely regular solutions with Minkowski metric far from the symmetry axis, with a possible angular deficit. A transition of the theory to the Einstein conformal frame is used as a tool, and many of the results apply to the general Bergmann-Wagoner-Nordtvedt class of scalar-tensor theories as well as f(R) theories of gravity. One of these results is a one-to-one correspondence between stringlike solutions in the Einstein and Jordan frames if the conformal factor that connects them is everywhere regular. An algorithm for the construction of stringlike solutions in HMPG and scalar-tensor theories is suggested, and some examples of such solutions are obtained and discussed.
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Dissertations / Theses on the topic "Tensor palatini"

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Gitt, Michael. "Molekulare Zusammensetzung der extrazellulären Matrix der Sehne des M. tensor veli palatini an der Umlenkung am Hamulus pterygoideus." Diss., lmu, 2006. http://nbn-resolving.de/urn:nbn:de:bvb:19-55833.

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Gitt, Michael [Verfasser]. "Molekulare Zusammensetzung der extrazellulären Matrix der Sehne des M. tensor veli palatini an der Umlenkung am Hamulus pterygoideus / vorgelegt von Michael Gitt." 2006. http://d-nb.info/980952654/34.

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Schwarz, Peter Bogdan. "Dopaminergic Control of Trigeminal Motor Outflow to Upper Airway Muscles in Anaesthetized Rats." Thesis, 2009. http://hdl.handle.net/1807/17710.

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The role of dopamine in directly modulating somatic motoneuron excitability and hence muscle tone is unknown. We investigated whether dopamine influences the trigeminal motor pool (MoV) that innervates the masseter and tensor palatini muscles, both of which function to maintain upper airway patency. We hypothesized that dopamine facilitates motor outflow at the MoV. We focally applied apomorphine (nonspecific dopamine receptor agonist) at the MoV in anaesthetized rats. We also applied receptor-specific agonists and antagonists to determine the receptor subtype mediating dopaminergic mechanisms of action. We demonstrated that dopaminergic transmission at the MoV potently increased motor outflow via the D1-like receptor and facilitated masseter and tensor palatini muscle tone. It is unknown whether endogenous dopamine release on to airway motoneurons influences their activity to regulate muscle tone in natural sleep-wake behaviours. This issue warrants investigation because the neurochemical basis of upper airway motor dysfunction (e.g. obstructive sleep apnea) remains poorly characterized.
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Books on the topic "Tensor palatini"

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Boer, Roland. The Economic Politics of Biblical Narrative. Edited by Danna Nolan Fewell. Oxford University Press, 2015. http://dx.doi.org/10.1093/oxfordhb/9780199967728.013.46.

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Assuming that politics cannot be separated from economics, this chapter begins by outlining a framework for understanding the economic politics of ancient Israel within the context of the ancient Near East. Overwhelmingly agrarian, these economies functioned in terms of a primary tension between palatine estates and village communities. The estates (also of temples) were intended to supply the small ruling class with its everyday and luxury needs. By contrast, the village communities operated on their own terms, although when under the wavering sway of rulers, they were forced to pay taxes and provide labor for the estates. In this context, the chapter interprets three biblical accounts. The first concerns the “estate of Eden,” and it argues that the underlying perspective is one of palatine estates. Second, the chapter focuses on the narrative tension between Joseph and Moses, which is the real tension of the story of Egypt and the Exodus. While Joseph represents an estate system and the cause of Israelite enslavement, Moses represents the constitutive resistance to that situation. Third, the texts of Job and Proverbs may be seen in this light, with Job criticized for his holding of estates and Proverbs presenting a subtle ruling-class perspective on the tension traced throughout the chapter.
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Conference papers on the topic "Tensor palatini"

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Trinder, John, Christian L. Nicholas, Christopher Worsnop, et al. "Discharge Patterns Of Tensor Palatini Motor Units During Sleep Onset." In American Thoracic Society 2010 International Conference, May 14-19, 2010 • New Orleans. American Thoracic Society, 2010. http://dx.doi.org/10.1164/ajrccm-conference.2010.181.1_meetingabstracts.a5387.

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Eckert, DJ, JP Saboisky, AS Jordan, et al. "Reflex Suppression Is Present in the Respiratory Phasic Genioglossus but Not Tonic Tensor Palatini Muscle in Response to Brief Negative Pressure Pulses." In American Thoracic Society 2009 International Conference, May 15-20, 2009 • San Diego, California. American Thoracic Society, 2009. http://dx.doi.org/10.1164/ajrccm-conference.2009.179.1_meetingabstracts.a4215.

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