National Institutes of Health U. The Investigator will determine if a particular finding is clinically significant. What are the main parts of the male reproductive system? Although at puberty he has signs of virilization, he has developed pronounced gynecomastia.
Describe the events in the ovarian cycle leading up to ovulation. Reliable contraception is defined as:.
These include breast development, flaring of the hips, and a shorter period necessary for bone maturation. Related questions What connects the ovaries to the uterus? Individualized therapy and the variety of supportive treatment options, as described in this volume, will help in achieving this goal, as well as in reducing adverse events and improving quality of life.
Hormones control sperm production in a negative feedback system. Increased levels of testosterone affect the release of both GnRH and LH, decreasing the activity of the Leydig cells, resulting in decreased testosterone and sperm production.