Which of the following is not a primary action of testosterone?

• A. Anabolic growth
• B. Promotes spermatogenesis
• C. None of these
• D. Promotes secretions from accessory glands

Answer: (C)

Testosterone acts as an androgen with several key roles in male physiology. It drives anabolic growth by increasing protein synthesis in muscles and bones, supporting overall body growth and maintenance. It is essential for spermatogenesis, providing the intratesticular testosterone environment that Sertoli cells need to support the development of sperm. It also promotes secretions from the accessory glands, such as the prostate and seminal vesicles, contributing to the seminal fluid. Because all three functions listed are recognized primary actions of testosterone, there isn’t any option that is not a primary action. Therefore, the correct answer is that none of these is excluded as a primary action of testosterone.