Veterinary Technician Practice Exam

Which hormone is primarily produced by the testes?

1. Estrogen

2. Testosterone

3. Progesterone

4. Oxytocin

The correct answer is: Testosterone

Testosterone is the primary hormone produced by the testes. It plays a crucial role in the development and maintenance of male reproductive tissues, as well as secondary sexual characteristics like increased muscle and bone mass, and the growth of body hair. In addition to these roles, testosterone is also involved in the regulation of libido and reproductive functions. While estrogen, progesterone, and oxytocin are important hormones within the body, they are produced primarily by other glands. Estrogen is mainly produced in the ovaries and is crucial for the development of female secondary sexual characteristics and reproductive functions. Progesterone, also produced in the ovaries, is essential for regulating the menstrual cycle and maintaining pregnancy. Oxytocin, produced by the hypothalamus and released by the posterior pituitary, is involved in childbirth and lactation. Understanding the specific production sites and functions of these hormones is vital in veterinary medicine, as it helps in diagnosing and treating conditions related to hormonal imbalances in both male and female animals.