This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionSeminiferous Cycle.svg
English: The cycle of the seminiferous epithelium shown within a cross section of a seminiferous tubule. To simplify the diagram no intracellular cytoplasmic bridges are shown and only one type of each cell is shown. As/pr/al cells actually exist in all stages. In any given tubule cross section only the cell types from a single stage will be present in mice. Stage numbers are shown around the perimeter of the tubule demarcated by black triangles. In. : Intermediate, Spg. : Spermatogonia.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Uploaded a work by Daniel Wells from "Delineation of meiotic gene expression in male mice" (2020) PhD Thesis https://ora.ox.ac.uk/objects/uuid:8c1f75a8-ecc3-4ffe-b01f-d2e92c75e66c with UploadWizard