Detail of the wall of two contiguous seminiferous tubules observed with the objective of 100x. In the wall, formed by germinative epithelium (already described in other microphotography), we can notice Sertoli cells, spermatogonias, primary spermatocytes and spermatids at major or minor development stage (the more developed are close to the lumen). Each seminiferous tubule is surrounded by a lamina propria (yellow), in which we can distinguish some  miofibroblasts nuclei.