Which hormone is the primary product of the testes?

Which hormone is the primary product of the testes?

• A. ESTROGEN
• B. TESTOSTERONE
• C. OXytocin
• D. PROGESTERONE

Answer: (B)

Testosterone is the main hormone produced by the testes. It comes from the Leydig cells in response to luteinizing hormone and serves as the key androgen driving male development and function. Testosterone promotes the growth and maintenance of male reproductive tissues, supports spermatogenesis with the help of Sertoli cells, and underlies secondary sexual characteristics such as increased muscle mass, deeper voice, and facial/body hair during puberty. It also acts as a precursor to other androgens in certain tissues and helps regulate the reproductive axis through feedback to the brain. Estrogen, while present in males in smaller amounts, is mainly produced by the ovaries in females (with some formation from testosterone via aromatization). Oxytocin is produced in the hypothalamus and released from the posterior pituitary, not by the testes. Progesterone is primarily produced by the ovaries and placenta, with only minor adrenal production.

Testosterone is the main hormone produced by the testes. It comes from the Leydig cells in response to luteinizing hormone and serves as the key androgen driving male development and function. Testosterone promotes the growth and maintenance of male reproductive tissues, supports spermatogenesis with the help of Sertoli cells, and underlies secondary sexual characteristics such as increased muscle mass, deeper voice, and facial/body hair during puberty. It also acts as a precursor to other androgens in certain tissues and helps regulate the reproductive axis through feedback to the brain.

Estrogen, while present in males in smaller amounts, is mainly produced by the ovaries in females (with some formation from testosterone via aromatization). Oxytocin is produced in the hypothalamus and released from the posterior pituitary, not by the testes. Progesterone is primarily produced by the ovaries and placenta, with only minor adrenal production.