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目的；为临床影像学和眼科学提供断层解剖学依据。方法：在２０个防腐固定的头部连续冠状断面上，观察眶内各间隙主要是肌锥内间隙的境界、内容及毗邻。结果：肌锥是由四直肌及其服间隙所组成。肌锥内间隙的面积在断面 ３、４、５和 ６上，分别为 １． ６ ｃｍ~２、２． １ｃｍ~２、３． ４ ｃｍ~２和 ４． ３ ｃｍ~２。四直肌的宽和厚在断面 ３上最小，而在断面 ５上最大。结论：肌锥内间隙为眶内一个重要的外科间隙，无论对麻醉还是手术定位均有重要意义。
Objectives; To provide tomographic anatomy for clinical imaging and ophthalmology. Methods: In 20 anticorrosive and fixed head continuous coronal sections, observe the realm, content and contiguity of interspaces in the orbital cavity. Results: Muscle cone is composed of four rectus muscle and its service gap. The area of the muscle cone gap is 1, 3, 4, 5 and 6 respectively. 6 cm ~ 2,2. 1cm ~ 2,3. 4 cm ~ 2 and 4. 3 cm ~ 2. The width and thickness of the rectus quadrangle 3 is the smallest in section 3 and the largest in section 5. CONCLUSIONS: The intramedullary space is an important intraorbital surgical gap, which is of great importance both for anesthesia and surgical localization.