What is the primary hormone produced by the testes?

The primary hormone produced by the testes is testosterone. This hormone plays a crucial role in the development of male reproductive tissues, the promotion of secondary sexual characteristics, and the regulation of various physiological processes, including spermatogenesis. Testosterone is responsible for traits such as increased muscle mass, bone density, and body hair growth. It also contributes to libido and overall male sexual health.

In contrast, estrogen is predominantly produced in the ovaries and is involved in female reproductive functions. Progesterone is another hormone primarily associated with the female reproductive system, particularly in regulating the menstrual cycle and maintaining pregnancy. Follicle-stimulating hormone (FSH) is a pituitary hormone that plays a role in reproductive processes, but it is not produced by the testes. Each of these hormones has specific functions and is associated with different aspects of human physiology, highlighting the importance of testosterone as the main hormone produced by the testes.