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Human femoral artery morphological changes after stretching


Which shows the collagen fibers are straightened vertical (circle:). Second Lan, tissue sections seen under the light microscope: the original segment length groups artery intima complete longitudinal sections of smooth muscle can be seen in the distribution is more uniform. Stretch of 15 group structure did not change significantly. Considerable stretch of 20 groups of longitudinal sections of intimal fracture, ends with the membrane. Luminal membrane to the inner layer of smooth muscle in the tilt j j adventitia loose no significant changes (Figure 4). As the stretch rate, cracks can be deep into the inner membrane. Some even full-thickness break in the film, breaking the organizational structure disorders, thinning of the outer membrane become sulfur, and even outer part of the longitudinal collagen fibers and elastic fibers are broken. Pulse stretching section 25 above the cross section of the Department of Labor luminal surface is not flat, the membrane lining the joint cavity to form a large ridge uplift, depression between the crest and ditch the wax. Uplift of part of the Department of smooth muscle and collagen fibers flocking to the lumen, disordered and loose. Arrangement of smooth muscle is still recessed ring approximation, more closely. And three full-thickness aortic wall thickness increased with the strain rate changes (Figure 5). L5 group stretching thin tube glazed tile, wall thickness of 20 groups of tension rise, close to the original length group level, stretching beyond the original wall thickness of 25 long after the group level. Changes in wall thickness from the major changes in Central and thickness,[link widoczny dla zalogowanych], endometrial thickness was no significant difference (P> 0.05), membrane thickness changes, but not much. One. , /,[link widoczny dla zalogowanych], L. I Tension between the rate of people with femoral artery segment was stretched to 15, the structure does not change, when stretched to section 2O luminal surface of arteries after transverse rupture occurred. With the stretch rate, the number of crack per unit length was increases linearly, but the average crack length and crack width and tension was no corresponding relationship between Chung, indicating that increased with strain rate,[link widoczny dla zalogowanych], increasing the number of major changes in the crack, and not every crack Jiaou or widened. with a tensile rate l, deep laceration to the membrane from the inner membrane, the membrane barrier layer or even involving the outer membrane, against the specified strain rate increase with the degree laceration exacerbated. From the clinical results suggest that limb lengthening does not occur within the blood vessels in the l5 complications,[link widoczny dla zalogowanych], and our in vitro experiments confirmed from the exact morphology of the tensile rate of 15 security barrier to the second vertebra, one section of the femoral artery wall thickness measured from the wall thickness was found, with the stretch rate, tube after the first thinning and thickening of the wall. barrier thickness changes are mainly synchronized with changes in thickness, indicating that changes in the membrane is a major factor. in the membrane wall thinning may be a quantitative reduction in tissue due to lengthen the content of the unit area To J in prison when the membrane thickening in the high tension, it seems that with the longitudinal ridge formation. Third, the human femoral artery segments with diameter changes of arteries under tension has been noted that after the smaller diameter, but smaller diameter law and reason that has not been analyzed and unremitting release. Our over-stretched by electron microscopy of collagen fibers are straightened in the film, longitudinal crest biopsy revealed smooth muscle and collagen fiber flocking to the lumen, and the loose arrangement of sulfur, so that the diameter strain rate decreases with the increase of collagen fibers may be due to stretching with the vertical and horizontal shrink due. overstretched, the longitudinal straightening of the lateral spacing of collagen fibers shrink, during which smooth muscle and collagen fiber structure to the weak the luminal surface of the formation of longitudinal displacement of the crest. longitudinal ridge intensified significant luminal narrowing which may lead to over-stretch the major structural changes in vascular crisis factors. (This article ignored the 2 to 4,[link widoczny dla zalogowanych], see inside back cover ) ● BIBLIOGRAP 1.Mitchd1. G.M.eta1.Ther ~ tureandextentofhistopathoiogicinjuryinhumanavulsedarteriesandveinsandinexperimentallyavulsedmonkeyarteries.PlastRenonstrSury1986l '78 :801-2. Zhouzhao Ping, respect. small arteries to further explore the tension shoe fits .- China Surgery .1982 l20: 719.3. Kawamura.B.eta1.LimblengtheningbymearmofSubcutan ∞ u8ostentomy.JBone3ointSary (Am) 1988,50:851.4. Guo Wei Ran, et al. femoral lengthening time (Report of 50 cases). Spine 6:281 * 1986. Wushou Yi , et al. tibial lengthening in 25 cases of Chinese foreign Yu 【magazine 1981l19: 19 · (Received 1992 and a I-3, Revised 1992-3-2)
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