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Dołączył: 21 Lut 2011
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 Wysłany: Czw 20:13, 10 Mar 2011 Temat postu: tory burch fyb rdw ctxy ehc |
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Assessment of the eustachian tube opening and closing the most narrow part of the phase
81-year-old normal human temporal bone specimens. Eustachian tube cavity under endoscopic observation of movement, we assume that the phase when the eustachian tube eustachian tube open cavity at its finest location on the minimum cross-sectional area, when the eustachian tube closed relative to the narrowest cavity at the smallest and the lumen location not in the same position. The location and extent of the eustachian tube contraction has an important impact on the middle ear, eustachian tube in the stationary state in closed form, through the muscle of palatine velum sheets to open. Therefore,[link widoczny dla zalogowanych], in the eustachian tube opening phase and closing phase when the narrowest part of the eustachian tube lumen may not be the same location. Previous studies compared the eustachian tube is closed when the eustachian tube is defined as the narrowest section of the Ministry of the minimum at this position in the Department of the eustachian tube cartilage. However, people rarely understand that when Zhang muscle of palatine velum open the eustachian tube, the position where the most narrow. Endoscopic observation showed in the opening phase when the eustachian tube isthmus when the significant change in the form of cavities. Eustachian tube eustachian tube wall caused by the expansion of open form by the crescent-shaped into a circular cavity. This is a fan Zhang palatal muscle contraction results. Fan Zhang muscle contraction of shame outside of the membrane wall of the eustachian tube and the lateral cartilage of the eustachian tube to the lateral movement,[link widoczny dla zalogowanych], the results of the crescent of the eustachian tube into a circular cavity. This indicates that the size of the eustachian tube lumen when the eustachian tube as the expansion phase after the opening cross-sectional size of the target. The purpose of this test the minimum lumen cross-sectional location and position of the smallest in the temporal bone specimens differences. 13 cases of temporal bone anatomy of the eustachian tube specimens without congenital anomalies or disability,[link widoczny dla zalogowanych], no obvious signs of middle ear disease. Specimens divided into two groups: children 6 patients,[link widoczny dla zalogowanych], 7 cases of adult group. 10 formalin fixed, decalcified 5 trichloroacetic acid, ethanol, a 169 off a water collodion embedding,[link widoczny dla zalogowanych], and then with the eustachian tube as vertical as 30ttm thick slices. Three-dimensional reconstruction of the eustachian tube cavity, eustachian tube cartilage, connected with the Eustachian tube the temporal bone. Including all the eustachian tube mucous membrane lining of the cross-section. Determine the pharyngeal opening of eustachian tube, and then determine the ring before the upper edge of the drum near the mouth of the drum. Pharyngeal opening and drum to the axis between the mouth and the pharyngeal opening of the drum for determining the distance between the mouth. Pharyngeal opening of the front edge identified as the most, this part of the eustachian tube cavity surrounded by the cartilage. Function to determine the final margin of the Department of the Ministry of the drum, this part of the bone composition. Results: Statistical analysis indicated that the eustachian tube lumen at the pharyngeal opening of the smallest cross-section and the location was not the least volatile. (Paired t test, t a 4.19, P <0.01), the average distance of two points 2.01ram soil 1.75mm (1.81mm Children soil 1.17mm, 2.19mm adult soil 2.22ram) . Data between children and adults was not significant. Always the smallest cross-section of the cartilaginous eustachian tube, and the smallest at the eustachian tube lumen (13 cases, 8 cases) near the Eustachian tube function in the cartilaginous parapharyngeal segment. Lumen in 2 patients in the most detailed section of the eustachian tube function, called the eustachian tube, But the real position of the isthmus was not clear. The results suggest that the pharyngeal eustachian tube junction edge may be a Eustachian tube cavity minimum cross-section of the site, in the closing phase will limit the eustachian tube stenosis. However, due to the junction leading edge of the eustachian tube is not subject to sail muscles of the palate, eustachian tube opening phase in the smallest cavity may be the most critical factor in the narrow eustachian tube. Thus, the anatomical location of the eustachian tube stenosis can be divided into two areas, one power zone to open the palate fan tensor, the second is a fixed area, from sail tensor of the palate. Cartilage, Dongli District, including most of the Ministry, the Ministry of fixed-function and bone areas, including the Ministry. The data to prove this, and Suzuki, the eustachian tube in a fixed area between the position of children and adults no significant difference in the narrowest part of the eustachian tube lumen in children and adults the range is also no significant difference between, however, the eustachian tube cartilage in the active region Department of the narrowest part of it forward to its length and cross section are significantly different. Therefore, the fixed area can be regarded as the normal eustachian tube and eustachian tube function and change the same position. Conclusion: The minimum cross-sectional studies have shown that the location and the location of the smallest lumen on the temporal bone specimens were significantly different. When prompted to open the eustachian tube at the narrowest point between the two points of change, and with the palatal muscle contraction sail change. (Lecture room Chapter Bin Song Study Abstract school) level of 158 single-cell analysis of middle ear mucosal immunity [English] / Sue-nagaS ... ∥ Laryngoscope. -2001,111 (2). A 290, a 296 previous studies have shown that middle ear is a potential immunomodulatory place. Middle ear mucosa is a mucosal immune system components. The author is from a single cell level, through the distribution of lymphocyte population of the middle ear mucosa, cytokine mRNA determination, cells specific antigen stimulates the production of IgA determination to reveal the middle ear mucosal immune and other features and role in mucosal immunity. Select None
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