Cutting edge-science2022 Shawnee, usa
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USA november december 2022
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- M. tensor veli palatini (MTVP)
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CUTTING EDGE-SCIENCE
2022 Shawnee, USA October Clinical and anatomical features of the structure of the auditory tube in children with congenital cleft palate Makhkamova N.E. 1 , Yakubdzhanov D.D. 1 , Makhkamova D.E. 2 Tashkent State Dental Institute, Department of Otorhinolaryngology. 2 Tashkent pediatric medical institute, department of allergology, clinical immunology, microbiology The function of the soft palate of the palatopharyngeal ring (PPR) depends mainly on the state of six interacting muscles (Fig. 1): - m. tensor veli palatini (MTVP) - muscles that strain the soft palate; - m. levator veli palatini (MLVP) - muscles that lift the soft palate; - m. palatopharyngeus - palatopharyngeal muscle; - m. constrictor pharyngis superior - upper throat constrictor; - m. palatoglossus - palatoglossal muscle; -m.uvulae muscles of the tongue. Fig. 1. Schematic representation of the muscles of the PPR in the norm (A) and with congenital cleft palate (B) (Clin Oral Investig 2016). M. tensor veli palatini (MTVP) - muscles that stretch the soft palate, begin at the base of the skull, the pterygoid process, the lateral surface of the cartilaginous part of the Eustachian tube, the middle part of the sphenoid bone, and the transition to the structure of the lateral wall of the pharynx (LWP). (Fig. 2). MTVP forms a soft tissue, goes into the sphenoidal bone (hamulus pterygoideus) and the aponeurosis of the soft tissue of the prochoditex. Normally, ISBN 978-1-64945-234-4 DOI https://doi.org/10.5281/zenodo.7509018 18 CUTTING EDGE-SCIENCE 2022 Shawnee, USA October the palatine aponeurosis of one side joins the aponeurosis of the opposite side and attaches to the posterior surface of the horizontal plates of the hard palate. Although other muscles adjoin the auditory tube (m. levator veli palatini and m. salpingopharyngeus), but only m. tensor veli palatini, which is attached laterally, opens the auditory tube (Clin Oral Investig 2016). All the muscles that make up the structure of the soft palate, with the exception of the muscles of the palatine curtain, have a pharyngeal connection. In the presence of a congenital cleft palate, pharyngeal activity decreases. Speech underdevelopment and an increase in middle and inner ear disorders are the result of altered pharyngeal function. The classic description of the anatomy of congenital cleft palate, based on work carried out in the twentieth century by the German anatomist von Luschka, is available from Bluestone C.D. (2016) and Bashiruddin J., 2018. A more recent review is in Ann Otol Rhinol Laryngol 2017. Impairment of functional ability occurs in the muscles of the soft palate, LWP, back wall of the pharyngeal. In connection with such a violation, compensatory functional changes are developed in children, aimed at compensating for the insufficiency of the muscular activity of these structures and manifested in the location of the root of the tongue closer to the oropharynx. This ultimately leads to a violation of the contact of the tip of the tongue with the alveolar process, causing changes in sound pronunciation. Hypernasal speech is observed, children cannot form fricatives. Ann Otol Rhinol Laryngol 2017 Fig. 2. Schematic representation of the points of attachment of the muscles of the PPR (Ann Otol Rhinol Laryngol 2017). ISBN 978-1-64945-234-4 DOI https://doi.org/10.5281/zenodo.7509018 19 Download 0.9 Mb. Do'stlaringiz bilan baham: |
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