Anatomical investigations of facial soft tissues by 3-directionl reconstruction of serial large-size histological specimens.

对从尸体标本中获得的人颊组织进行了组织学研究。这项研究揭示了以下新的观点：(1)面颊没有明显的连续层，称为浅筋膜。然而，它的类似物是面部浅表肌肉的纤维周围部分，如眼轮匝肌和阔阔肌。(2)面部脂肪首先分为表层和深层。然后将深层脂肪层进一步划分为与面神经区域相对应的亚基。(3)以Rima Oris为面层基础，可以很好地解释面部肌肉组织的分层。面部由深层到表层由4层肌肉组成。这些新概念与面部的胚胎学和功能是一致的。

Human cheek tissue gained from cadaver specimen were investigated histologically. This reserch revealed following new points ;(1)There's no distinct continuous layer called as superficial fascia in the cheek. The analogue of it is, however, though to be fibrous periheral portions of superficial facial muscles such as orbicularis oculi and platysma. (2)Facial fat is firstly devided to superficial and deep layer. Then, deep fat layer is further classified into subunits corresponding to facial nerve territories. (3)Stratified facial musculature are well explained if we regard Rima Oris as basis of facial layer. Face is consist of 4 muscular layers from deep to superficial direction. These new concepts mentioned above are coincide with embriology and function of the face.