Bustos-Obregon E
Andrologia. 1976;8(3):179-85. doi: 10.1111/j.1439-0272.1976.tb02132.x.
The lamina propria of the seminiferous tubules comprises the basement membrane, plus one or more layers of cells, depending on the species, and intercellular material. The myoid (contractile) cells are nearest to the seminiferous tubules. In larger mammals, several layers of contractile cells, surrounding the seminiferous tubules are normally present. They are charaterized by the presence of boundles of 80 A filaments, which are responsible for the contractility. It is supposed, that the myoid cells are renewed from adjacent peripheral fibroblast-like cells.
生精小管的固有层由基底膜以及根据物种不同而有一层或多层细胞和细胞间物质组成。肌样（收缩性）细胞最靠近生精小管。在较大的哺乳动物中，通常有几层围绕生精小管的收缩性细胞。它们的特征是存在80埃的细丝束，这些细丝束负责收缩性。据推测，肌样细胞是由相邻的外周成纤维细胞样细胞更新而来的。
