Testosterone

Definition

Testosterone is a steroid hormone primarily produced in the testes in males and in smaller amounts in the ovaries and adrenal glands in females. It plays a crucial role in the development of male reproductive tissues and secondary sexual characteristics.

5 Must Know Facts For Your Next Test

1. Testosterone is responsible for the development of male secondary sexual characteristics such as facial hair, deepening of the voice, and muscle mass.
2. It is produced by Leydig cells located in the testes.
3. Testosterone levels increase during puberty and decline with age.
4. Besides its role in reproduction, testosterone also influences mood, energy levels, and overall health.
5. An imbalance in testosterone levels can lead to various health issues such as hypogonadism or polycystic ovary syndrome (PCOS).

Review Questions

• What are the primary functions of testosterone in males?
• Where is testosterone produced in both males and females?
• What are some health issues related to abnormal testosterone levels?

Related terms

Estrogen: A primary female sex hormone involved in the regulation of the menstrual cycle and reproductive system.

Leydig Cells: Cells located in the testes responsible for producing testosterone.

Hypogonadism: A condition where the body doesn't produce enough testosterone.