| CT | Connective tissue |
| VTC | Vesicular connective tissue cells |
| ADGs | Adipogranular cells |
| 17β-HSD | 17β-Hydroxysteroid dehydrogenases |
| 3β-HSD | β-Hydroxysteroid dehydrogenase/Δ5−4 isomerase |
| PL- proteins | Protamine-Like |
| H&E | Hematoxylin and Eosin |
| ASD | Androstenedione |
| T | Testosterone |
| DHEA | Dehydroepiandrosterone |
| n.d. MNase |
Undigest Micrococcal nuclease |