(Solved): 4. Use the high power objective to focus on a seminiferous tubule. Using Figure \( 18-5 \) as a gui ...

4. Use the high power objective to focus on a seminiferous tubule. Using Figure \( 18-5 \) as a guide, identify the seminiferous tubule, spermatogonia, spermatids, interstitial or Leydig cells, and sperm cells if present. 5. Let your instructor know when you feel you can recognize the cells and structures of the testis. Your instructor will choose one or several structures for you to identify. 6. Answer the questions at the end of the study section. Figure 18-5. Photomicrographs of a rat testis at high power \( (400 \mathrm{x}) \). Name one of the functions of the Leydig cells. What is spermatogenesis? List the three regions of a sperm cell.