<Li> Secrete substances initiating meiosis </Li> <Li> Secrete supporting testicular fluid </Li> <Li> Secrete androgen - binding protein (ABP), which concentrates testosterone in close proximity to the developing gametes <Ul> <Li> Testosterone is needed in very high quantities for maintenance of the reproductive tract, and ABP allows a much higher level of fertility </Li> </Ul> </Li> <Ul> <Li> Testosterone is needed in very high quantities for maintenance of the reproductive tract, and ABP allows a much higher level of fertility </Li> </Ul>

Describe the role of fsh and lh in sperm cell production