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

对取自身体标本的人脸颊组织进行组织学研究。本研究发现：(1)面颊不存在明显的连续层，称为浅筋膜。然而，它的类似物是面部浅肌肉的纤维性周缘部分，如眼轮匝肌和颈阔肌。(2)首先将面部脂肪分为浅层和深层。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单位。(3)如果以RIMA ORIS作为面层的基础，则可以很好地解释面肌的层次化。面部从深到浅由4个肌层组成。以上提到的这些新概念与面部的通气学和功能不谋而合。

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.