A new model for the morphology of the arrector pili muscle in the follicular unit based on three-dimensional reconstruction
A new model for the morphology of the arrector pili muscle in the follicular unit based on three-dimensional reconstruction
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DOI：
10.1111/j.1469-7580.2006.00575.x
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发表时间：
2006-05-01
影响因子：
2.4
通讯作者：
Koh, KS
中科院分区：
文献类型：
--
作者：
Song, WC;Hwang, WJ;Koh, KS
在经典的竖毛肌肉模型中，每个毛囊都独立地与一块AP肌肉相关联。最近，基于对一系列组织切片图像的解释，提出了新的模型。本研究的目的是通过连续切片图像的定量三维(3D)重建来确定AP肌相对于滤泡单位(FU)的形态。皮肤样本取自头皮的顶区，并用常规的组织学方法进行处理。连续切片的玻片用马森三色法染色。所有的毛发和毛囊都表现出不同程度的倾斜，单个AP肌呈同一方向倾斜。AP肌的远端被分成支气管树的分支。在FU的单个AP肌中有分支，它或紧或松地插入FU的所有毛囊。我们建议，经典的AP肌肉解剖必须用这个新的模型来修改，现在已经被基于计算机的3D重建所证实。
In the classic model of the arrector pili (AP) muscle, each hair follicle is independently associated with a single AP muscle. Recently, new models have been proposed based on interpretations of serial histological cross-sectional images. The purpose of this study was to confirm the morphology of the AP muscle in relation to the follicular unit (FU) using quantitative three-dimensional (3D) reconstruction of serially sectioned images. Skin samples were obtained from the parietal region of the scalp, and processed using routine histological procedures. The serially sectioned slides were stained with Masson's trichrome. All the hairs and hair follicles of the FU exhibited some degree of slanting, with the single AP muscle slanted in the same direction. The distal portion of the AP muscle was divided into branches, as in a bronchial tree. There was branching in the single AP muscle present in the FU, and it was inserted into all the hair follicles of the FU either tightly or loosely. We suggest that the classic anatomy of the AP muscle must be modified with this new model, now confirmed by computer-based 3D reconstruction.