[Development, configuration and structure of the temporal fascia in humans].

The genesis, configuration and structure of the temporal fascia in humans, during the various stages of fetal development and in the adult were studied in order to contribute to the knowledge of its morphological and topographical characteristics. The most remarkable results are: (1) In the adult, there is a thin connective laminar layer interposed between the "galea capitis" and the temporal fascia, derived from the deep subcutaneous layer; (2) the temporal fascia develops about the third month of intra-uterine life and is well outlined at the fourth month. In this period it seems to be subdivided, in its lower third, into two layers (superficial and deep) reaching the zygomatic arch and circumscribing a triangular space in the frontal sections, originally occupied by loose connective tissue and then, beginning from the fifth month, by fatty tissue; (3) the two uncoupling or unlaminar layers of the temporal fascia in the adult join the lateral surface of the zygomatic arch; (4) from the end of the fifth fetal month, an accumulation of primary fat is interposed between the temporal m. and its fascia: this is to be interpreted as a temporal extension of the Bichat's fat-ball in the cheek.