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首页> 外文期刊>The American journal of otology >Developmental anatomy of the supratubal recess in temporal bones from fetuses and children.
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Developmental anatomy of the supratubal recess in temporal bones from fetuses and children.

机译：胎儿和儿童颞骨上管上凹的发育解剖。

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摘要

The supratubal recess (STR), located superior to the bony eustachian tube and anterior to the attic and often the site of disease, is clearly separated from the attic by the presence of a bony partition. Its anatomic development in childhood, however, remains nuclear. We reviewed serial horizontal sections of fetal and children's temporal bones from the collection of the Otopathology Laboratory, University of Minnesota. Apparently, upward expansion of the bony eustachian tube begins at a late fetal stage and continues throughout childhood, thus forming the STR. Our finding that the STR had already developed in temporal bones without pneumatization of petrous bone suggests that its formation is independent of the air-cell system. Absorption of mesenchymal tissue in the STR tends to be slower than elsewhere in the temporal bone. Surrounded solely by petrous bone, the STR seems, both developmentally and anatomically, a distinctive compartment of the middle ear.
机译：管上凹（STR）位于骨性咽鼓管上方，位于阁楼前，通常是疾病部位，由于存在骨分隔，显然与阁楼隔开。然而，它在童年时期的解剖学发展仍然是核的。我们从明尼苏达大学耳病理学实验室收集了胎儿和儿童颞骨的连续水平切片。显然，骨性咽鼓管的向上扩张始于胎儿晚期，并贯穿整个儿童期，从而形成了STR。我们的发现表明STR已经在颞骨中发育而没有气化骨化石，这表明它的形成与气室系统无关。 STR中的间充质组织的吸收往往比颞骨其他部位的吸收慢。 STR仅由石骨包围，从发育和解剖学上看，中耳都与众不同。

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