Final answer:
Nurse cells, also known as Sertoli cells, are found in the seminiferous tubules and play a crucial role in coordinating spermatogenesis.
Step-by-step explanation:
Nurse cells, also known as Sertoli cells, are found in the seminiferous tubules and play a crucial role in coordinating spermatogenesis. These cells provide support and nourishment to developing germ cells and secrete signaling molecules that promote sperm production. They also form tight junctions that create the blood-testis barrier, preventing the entry of bloodborne substances into the seminiferous tubules.